7 Best Gas Cans for Emergency Storage (2026) | PrepperIQ

The gas can sitting in your garage right now may be slowly destroying the fuel inside it.

HDPE plastic degrades under UV exposure and temperature swings. Seals that started tight loosen over seasons of expansion and contraction. Vented designs with open vent holes let moisture and air cycle freely through the headspace, accelerating the oxidation that turns gasoline to varnish. Standard red jugs from the hardware store — the ones most people own — are designed to be affordable, not to preserve fuel for 12 months.

When grid power disappears, everything downstream of that fuel depends on its quality. Your generator will not care that you bought the wrong container.

The right gas can does four things: seals against vapor loss, prevents moisture intrusion, resists HDPE permeation or steel corrosion, and complies with fire codes and emissions regulations. The wrong one undermines any stabilizer you add and gives you degraded fuel exactly when you cannot afford it.

These seven options cover every storage scenario a prepper, homesteader, or emergency planner encounters — from military-grade steel jerry cans to a two-gallon backup that fits behind a car seat.

Product	Capacity	Material	CARB	Price	Best Use
Scepter MFC	5 gal	HDPE	Yes	$42–$50	Best overall prepper can
No-Spill 1405	5 gal	HDPE	Yes	$25–$30	Daily use, spill control
Wavian 20L NATO	5.3 gal	Steel	Yes	$45–$80	Long-term/permanent storage
VP Racing	5 gal	HDPE	Varies	$35–$55	Ethanol-free, motorsport use
Justrite 7250130	5 gal	Galvanized steel	Yes	$80–$110	Workshop/garage safety
Midwest Can 1200	2 gal	HDPE	Yes	$18–$22	Trunk/backup supply
Fuelworthy	5 gal	HDPE	Yes	$15–$20	Budget storage

1. Scepter 5-Gallon Military Fuel Can (MFC) — Best Overall

The Scepter MFC was originally designed to meet NATO fuel container standards for military logistics — the kind of application where a failed seal means a disabled convoy, not a stalled lawn mower. That origin shows in its construction.

The container is manufactured from UN-approved, cross-linked HDPE rather than the standard linear HDPE used in most consumer gas cans. Cross-linked HDPE is denser, more impact-resistant, and significantly less permeable than standard HDPE. The difference matters for storage: standard HDPE allows measurable vapor permeation over months. Cross-linked HDPE dramatically reduces that loss.

The Scepter’s integrated spout and child-resistant cap form a single sealed system with no separate vent hole. This is a critical design difference. Legacy cans with a dedicated vent hole — even when plugged — create a second leak point that allows air and moisture exchange with every temperature swing. The Scepter’s single-point system means atmospheric pressure changes are absorbed through the HDPE walls rather than vented through a hole.

The can is EPA and CARB compliant, legal in all 50 states including California. UL listed. FM approved. These certifications matter not just for fire code compliance but as a proxy for seal quality and construction standard — agencies do not certify containers with poor seals.

At $42 to $50, the Scepter costs three to four times more than a standard red jug. The justification is clear: better material, better seal, and a construction standard tested to survive transport in military vehicles. For a prepper building a 25-gallon fuel reserve with five cans, the total investment is $210 to $250 — about $160 more than five cheap cans, for fuel preservation measured in months versus weeks.

Specs:

Capacity: 5 gallons
Material: Cross-linked HDPE
Vent: Integrated single-point, no separate vent
Certifications: UL, FM, EPA, CARB
Price: $42–$50
Made in: Canada

Pros: Military heritage construction, superior HDPE density, single-sealed system, legal everywhere, lighter than steel Cons: Costs 3–4x more than standard cans, spout design takes adjustment Prepper use case: Primary fuel storage containers for your full generator stockpile. Five cans gets you 25 gallons at the NFPA 30 residential limit. Pair with PRI-G or STA-BIL stabilizer — see our gas stabilizer for long-term storage guide for what to add.

2. No-Spill 1405 5-Gallon Gas Can — Best for Daily Use

The No-Spill 1405 solves the most common failure mode of everyday fuel handling: accidental spills during the pour.

Every standard gas can requires you to manage two states simultaneously — the pouring angle and the air vent. Tilt too fast without opening the vent and the fuel glugs, sloshes, and spills. The No-Spill eliminates this problem with a pressure-control spout that automatically meters airflow against fuel flow. A single thumb button on the nozzle controls the pour. Release the button and it stops.

This design has real safety implications beyond inconvenience. Spilled gasoline near a generator or power equipment is a fire hazard. In poor lighting during an actual emergency — at night, in a storm — clean and controlled fuel transfer matters more than ever.

The 1405 is EPA and CARB compliant. The single integrated nozzle meets the no-separate-vent requirement that California and CARB-adopting states require. Construction is standard HDPE in the typical red-can color palette.

The main trade-off is that the pressure-control spout is more mechanically complex than a simple cap and spout. More moving parts means more potential failure points over years of storage. Some users report the button mechanism stiffening in cold temperatures. For cans you actively use and rotate frequently, this is a non-issue. For cans you store for 12 months between uses, verify the spout before relying on it.

The No-Spill costs $25 to $30, a moderate premium over generic jugs that is easy to justify for the spill-control benefit alone.

Specs:

Capacity: 5 gallons
Material: Standard HDPE
Vent: Pressure-control thumb-button spout, no separate vent
Certifications: EPA, CARB
Price: $25–$30

Pros: Near-zero spill risk, intuitive pour control, CARB compliant, solid value Cons: Standard HDPE (not cross-linked), spout mechanism adds complexity, can stiffen in cold Prepper use case: The go-to can for regular generator fueling and frequent fuel rotation. If you run your generator monthly for testing or during seasonal outages, the No-Spill is the most practical daily-use container on this list.

3. Wavian 20L NATO Jerry Can — Best for Long-Term Storage

If your goal is maximum fuel preservation over the longest possible time window, nothing on this list matches the Wavian.

The Wavian is an authentic NATO-specification steel jerry can manufactured in Estonia to the original World War II German Wehrmacht fuel can design — a design that has been largely unchanged because it has not needed to change. The original engineers solved the long-term fuel storage problem in the 1930s. The Wavian is that solution with modern steel and modern coatings.

Steel provides near-zero vapor permeation. Where HDPE allows measurable vapor loss over months, steel traps it. The Wavian’s gasket system uses a lever-locking bail that compresses the lid seal against the container with significant force. When sealed correctly, the lid-to-body interface is effectively airtight. Air exchange — the mechanism that allows moisture intrusion and oxidation — is stopped at the source.

The interior is coated to prevent rust. Gasoline does not contact bare steel. The exterior is coated with a gray primer and topcoat. A gallon-for-gallon fuel stockpile in Wavian cans will outlast the same stockpile in any plastic container, all else equal.

The Wavian is EPA and CARB compliant. The authentic NATO can design uses a screw-cap vent that meets modern emissions standards when properly closed. This is one of the rare steel jerry cans that is legal in California. Knockoff NATO cans from overseas — widely sold on Amazon at low prices — often fail CARB compliance and have inconsistent seal quality. Buy the Wavian. The price difference is the quality difference.

At $45 to $80 per can, the Wavian is the most expensive option on this list. A five-can 25-gallon setup costs $225 to $400. That is a significant investment. For preppers who prioritize fuel quality over cost, or who cannot commit to a 6-month rotation schedule and need a container that forgives longer storage windows, the Wavian is the correct choice.

Weight is the real practical limitation. A Wavian filled with 20L of gasoline weighs approximately 38 pounds. That is manageable for a fit adult, but meaningfully heavier than five gallons in a Scepter MFC at roughly 31 pounds. If your storage scenario involves carrying cans up stairs, loading them into a truck bed alone, or preparing for an elderly household member to handle them, factor the weight difference in.

Specs:

Capacity: 20 liters (5.28 gallons)
Material: Welded steel with interior coating
Vent: Lever-lock bail, screw-cap EPA/CARB compliant vent
Certifications: EPA, CARB, UN/DOT
Price: $45–$80
Made in: Estonia

Pros: Maximum vapor impermeability, effectively airtight seal, longest storage life, authentic NATO spec, legal in all 50 states Cons: Heaviest option when full (~38 lbs), highest price per can, rust risk if interior coating is damaged Prepper use case: Long-term fuel reserves you plan to store for 12+ months with minimal rotation. Five Wavian cans equals a 26.4-gallon stockpile — just above the NFPA 30 limit, so plan for four cans (21 gallons) to stay within legal limits with confidence.

4. VP Racing 5-Gallon Motorsport Container — Best for Ethanol-Free Gas

VP Racing Fuels built its brand serving professional motorsport teams who need to store specialty fuel blends without contamination or degradation between race weekends. That engineering attention transfers directly to prepper use cases involving ethanol-free gasoline.

The VP Racing 5-gallon container uses a heavy-wall HDPE construction specifically formulated for fuel compatibility. More importantly, the VP can’s gasket and seal system is designed to resist the chemical properties of various fuel formulations, including fuels with different ethanol content and additive packages. For preppers who source ethanol-free (E0) gasoline — the highest-quality fuel for long-term storage — the VP container’s compatibility profile is a direct benefit.

The pouring spout system is a professional motorsport design: a separate flexible hose and integrated cap system rather than a consumer snap-on nozzle. This design is faster for high-volume fuel transfer and does not degrade with repeated attachment and removal the way consumer spout threads can.

CARB compliance varies by product line. The standard VP motorsport cans are not CARB compliant and are illegal for sale in California. VP produces a separate CARB-compliant line for the California market. If you are in a CARB state, verify compliance before purchasing.

At $35 to $55, the VP can is priced in the mid-range. The motorsport pedigree is genuine, not marketing. If ethanol-free storage is your specific use case, this is the purpose-built option.

Specs:

Capacity: 5 gallons
Material: Heavy-wall HDPE
Vent: Integrated motorsport spout system
Certifications: DOT; CARB compliance varies by model
Price: $35–$55

Pros: Purpose-designed for fuel storage quality, heavy-wall HDPE, professional spout system, excellent for E0 and specialty fuels Cons: CARB compliance is model-specific (check before buying), higher price than comparable HDPE cans Prepper use case: Storing ethanol-free gasoline for your generator or stored vehicle fuel. If you’ve already committed to sourcing E0 from pure-gas.org, the VP can is the right container to protect that premium fuel investment.

5. Justrite 7250130 5-Gallon Safety Can — Best for Workshop/Garage

The Justrite 7250130 is not designed for emergency preparedness. It is designed for industrial workshop fuel handling where OSHA, NFPA, and local fire codes govern container requirements. That pedigree makes it the safest option for preppers who store fuel in an attached garage or workshop with ignition sources present.

Justrite safety cans are manufactured from galvanized steel — not coated steel, galvanized — with a spring-closing lid that shuts automatically when released. The self-closing lid is the key feature: it cannot be left open by accident. The built-in flame arrestor is a wire mesh screen inside the opening that prevents an external flame from reaching the fuel vapor inside the can. Standard gas cans have no flame arrestor. A Justrite can will not ignite if you hold a lighter to the opening; a standard plastic jug will.

The can meets OSHA 29 CFR 1910.106, NFPA 30, and FM Global standards for flammable liquid containers. These are the standards your local fire marshal uses when inspecting commercial properties. For a home workshop or attached garage where you store power tools, run machinery, or operate equipment with open flames or hot surfaces, the Justrite provides a margin of safety that no consumer-grade can matches.

The trade-offs are cost and weight. At $80 to $110, the Justrite is the most expensive can on this list on a per-can basis. Filled, galvanized steel plus five gallons of gasoline weighs approximately 33 pounds — lighter than the Wavian but heavier than HDPE options. The self-closing lid adds slight friction to the fueling process that takes a few uses to adjust to.

Specs:

Capacity: 5 gallons
Material: Galvanized steel
Vent: Spring-closing self-sealing lid with flame arrestor
Certifications: OSHA, NFPA 30, FM Global, CARB
Price: $80–$110

Pros: Self-closing lid, flame arrestor, OSHA/NFPA compliant, maximum fire safety for indoor use Cons: Most expensive option, heaviest per-gallon, industrial design is overkill for detached outdoor storage Prepper use case: Attached garage or workshop storage where ignition sources are present. If you store fuel within 25 feet of a water heater, furnace, or power tools, the Justrite’s safety engineering is the correct choice over any plastic or standard steel can.

6. Midwest Can 1200 2-Gallon — Best Backup/Trunk Can

Not every prepper scenario involves a full generator setup. Sometimes you need fuel in the car, in a bug-out vehicle, or as a compact reserve that fits where a 5-gallon can will not.

The Midwest Can 1200 is a 2-gallon HDPE container with a clean, functional design and a controlled-pour spout. At two gallons, it stores in a truck bed without consuming significant cargo space, fits behind a rear seat in most SUVs, and is light enough for anyone to handle regardless of strength or age. Two gallons weighs about 13 pounds full.

The Midwest Can uses a traditional spout design — not the pressure-control system of the No-Spill — but in a compact form factor that fits applications where a 5-gallon can is impractical. The can is CARB compliant with no separate vent hole. Construction quality is standard consumer HDPE: adequate for a 3 to 6 month rotation cycle, not the material you want for 18-month storage.

At $18 to $22, this is the lowest-cost option on this list per unit. For use as a vehicle emergency reserve or to supplement a larger storage setup with a portable unit you can grab quickly, the Midwest Can delivers what it promises.

Specs:

Capacity: 2 gallons
Material: Standard HDPE
Vent: Traditional spout, CARB compliant
Certifications: EPA, CARB
Price: $18–$22

Pros: Compact and lightweight, fits in vehicles and tight spaces, affordable, CARB compliant Cons: Standard HDPE only, 2-gallon capacity limits storage applications, traditional spout has some spill risk Prepper use case: Vehicle trunk emergency reserve, supplemental portable fuel, bug-out bag companion. Not a replacement for 5-gallon storage cans — a complement to them.

7. Fuelworthy 5-Gallon — Best Budget Option

The Fuelworthy is a straightforward, no-frills 5-gallon HDPE gas can at the lowest price point on this list.

At $15 to $20, the Fuelworthy costs roughly half of a Scepter MFC and a third of a Wavian. For preppers on a tight budget who need to build a 25-gallon stockpile without a large upfront investment, it provides a starting point.

The Fuelworthy is EPA and CARB compliant. The integrated spout and cap design meets no-separate-vent requirements. Material is standard HDPE — the same category as most consumer gas cans. Construction quality is adequate, not premium.

The honest assessment: the Fuelworthy is a tool for building a fuel reserve today when budget constrains better options. The storage life window for standard HDPE is shorter than cross-linked HDPE or steel, the vapor seal is adequate rather than excellent, and the useful life of the container itself is 3 to 5 years with normal use and UV exposure.

If the choice is between owning five Fuelworthy cans with fuel in them today or owning zero Wavian cans because you cannot afford them yet, the Fuelworthy wins. Committed fuel with a 6-month rotation cycle in a standard HDPE can is better preparedness than no fuel waiting for a premium can. Upgrade your containers incrementally as budget allows.

Specs:

Capacity: 5 gallons
Material: Standard HDPE
Vent: Integrated CARB-compliant spout
Certifications: EPA, CARB
Price: $15–$20

Pros: Lowest price on the list, CARB compliant, gets you started with fuel storage today Cons: Standard HDPE limits long-term storage quality, shorter container lifespan than premium options Prepper use case: Budget-constrained first builds. Works well for anyone committed to a strict 6-month rotation cycle. Replace with Scepter MFC or Wavian as budget allows.

Buyer’s Guide: What Actually Matters in a Gas Can

HDPE vs. Steel

Most gas cans are made from HDPE (high-density polyethylene). Most premium jerry cans are made from steel. The differences are material to long-term storage:

HDPE advantages: Lighter, does not rust, less expensive, impact-resistant HDPE disadvantages: Vapor permeation over time, UV degradation, shorter container lifespan (5–10 years), lower seal integrity than a properly designed steel can

Steel advantages: Near-zero vapor permeation, effectively airtight seals achievable, decades of container lifespan, resistant to UV degradation Steel disadvantages: Heavier, more expensive, potential rust if interior coating is damaged, dents are permanent

For fuel you rotate every 3 to 6 months: quality HDPE is fine. For fuel you store for 12+ months between uses: steel wins.

Not all HDPE is equal. Cross-linked HDPE (used in the Scepter MFC) is denser, less permeable, and more impact-resistant than standard HDPE. The difference is meaningful for long-term storage. Look for “cross-linked HDPE” or “UN-approved polyethylene” in product specs.

CARB Compliant vs. Non-CARB

CARB-compliant fuel containers meet California Air Resources Board evaporative emission standards. The design requirement is straightforward: no separate vent hole. CARB cans use a single integrated spout that vents through the pour pathway rather than through a dedicated vent opening.

Old-style gas cans with a dedicated vent hole — still sold in many states — are illegal in California and increasingly restricted in other CARB-adopting states. Beyond legality, the no-vent-hole design is also better for fuel storage: every additional opening is an additional moisture and air intrusion point.

If you are buying new cans today, buy CARB-compliant. You gain fuel preservation benefits and future-proof yourself against expanding state regulations.

Legal Storage Limits

NFPA 30 (Flammable and Combustible Liquids Code) is the national standard governing fuel storage. Most local fire codes adopt NFPA 30 directly or with minor modifications:

Residential storage limit: 25 gallons in approved containers
Attached garage limit: Often 10 gallons in many jurisdictions
Detached structure limit: Typically 25 to 30 gallons
Container requirement: UL-listed or FM-approved containers only

These limits are per structure, not per property in most jurisdictions. A detached shed can hold its own allotment separate from your garage.

Always verify with your local fire marshal. Jurisdictions vary, and the penalty for non-compliance in the event of a fire can include denied insurance claims. Approved containers mean UL-listed, FM-approved, or UN/DOT certified — not just any container that holds gasoline.

Proper Storage Practices

Temperature matters. Gasoline vapor pressure rises with temperature. Store fuel in the coolest available location — a shaded detached shed outperforms a sun-exposed garage. High storage temperatures accelerate oxidation and vapor loss regardless of container quality.

Seal check on every rotation. Before filling cans for a new rotation cycle, inspect the lid gasket, spout threads, and any pressure relief mechanisms. Replace worn gaskets before storing. A container that sat with slightly degraded seals for 6 months did not preserve your fuel as intended.

Keep cans upright. Lay-on-side storage increases the lid and seal area in contact with liquid fuel, accelerating gasket degradation. Upright storage keeps liquid below the seal.

Store away from ignition sources. No open flames, no water heaters with pilot lights, no electrical panels, no tools that spark. A concrete floor in a well-ventilated space is ideal.

Add stabilizer immediately. Fuel stabilizer works best on fresh fuel. Add it at the point of filling, not weeks later. See our gas stabilizer for long-term storage guide for dosing by product.

Labeling and Rotation System

Unlabeled fuel cans are a liability. In an actual emergency, you need to know what is in each can, when it was filled, and what has been added to it — without guessing.

Minimum label information for every can:

Fill date (month and year)
Fuel type (E10, E0, ethanol-free, etc.)
Stabilizer used and dose
Planned rotation date

Use a paint marker directly on the can. Masking tape labels fall off in humidity and temperature swings. Paint marker survives years of storage and garage conditions.

FIFO rotation system (first in, first out):

Store cans in a single row with the oldest at the front, newest at the back
Every 6 months, pour the front-row cans into your vehicle’s gas tank — modern cars handle slightly aged treated gasoline without issue
Refill empty cans with fresh fuel, add stabilizer immediately, label, move to the back of the row
Set a calendar reminder for your next rotation — April and October align with time changes and seasonal generator testing

A 25-gallon stockpile in five Scepter MFC cans, rotated every 6 months, costs approximately $75 to $100 per rotation at $3.00/gallon. That is the cost of maintaining a 7 to 10-day generator supply at constant readiness. The fuel goes into your car anyway — you are not throwing it away.

Comparison Table

Full specs across all seven options.

Product	Capacity	Material	CARB	Certifications	Price	Best Use
Scepter MFC	5 gal	Cross-linked HDPE	Yes	UL, FM, EPA, CARB	$42–$50	Primary storage, best HDPE option
No-Spill 1405	5 gal	Standard HDPE	Yes	EPA, CARB	$25–$30	Daily use, frequent fueling
Wavian 20L NATO	5.3 gal	Steel	Yes	EPA, CARB, UN/DOT	$45–$80	Long-term 12+ month storage
VP Racing	5 gal	Heavy-wall HDPE	Varies	DOT	$35–$55	Ethanol-free specialty storage
Justrite 7250130	5 gal	Galvanized steel	Yes	OSHA, NFPA 30, FM	$80–$110	Workshop/attached garage
Midwest Can 1200	2 gal	Standard HDPE	Yes	EPA, CARB	$18–$22	Vehicle backup, bug-out kit
Fuelworthy	5 gal	Standard HDPE	Yes	EPA, CARB	$15–$20	Budget starter storage

The right can depends on your scenario. For most preppers building a primary generator fuel reserve: Scepter MFC for the best plastic option, Wavian if you want steel-class storage life and budget allows. For daily use and frequent rotation: No-Spill 1405. For an attached garage with ignition sources: Justrite. For a vehicle reserve: Midwest Can 1200. Building on a budget: Fuelworthy with a strict 6-month rotation commitment.

Your container is half the fuel storage system. The other half is what you put in it. Review our gas stabilizer for long-term storage comparison to complete the setup.

Gas Cans FAQ

How long does gasoline last in a gas can?

Untreated E10 gasoline stored in a standard plastic gas can degrades in 30 to 60 days. In a quality container with a tight seal — Wavian NATO can or Scepter MFC — and treated with a fuel stabilizer, you can expect 12 to 24 months of reliable storage. Ethanol-free gasoline in a sealed steel jerry can with PRI-G treatment pushes 2 to 3 years. The container quality matters nearly as much as the stabilizer.

What is the legal limit for storing gasoline at home?

NFPA 30, the national standard adopted by most local fire codes, caps residential gasoline storage at 25 gallons in approved containers. Many jurisdictions impose a stricter 10-gallon limit for attached garages. Detached structures typically allow the full 25 to 30 gallons. These limits apply to each building, not the entire property. Always verify with your local fire marshal, and only use UL-listed or FM-approved containers.

Are plastic gas cans safe for long-term storage?

HDPE plastic cans are safe for storage if they are UL-listed or ASTM F852-compliant. The risk is permeation — HDPE is slightly porous, and gasoline slowly evaporates through the walls over months and years. Steel cans like the Wavian NATO virtually eliminate permeation and provide better vapor control. For storage beyond 12 months, steel outperforms plastic. For rotated fuel you cycle through every 3 to 6 months, quality HDPE performs fine.

What does CARB-compliant mean for gas cans?

CARB stands for California Air Resources Board. CARB-compliant gas cans meet California’s strict evaporative emissions standards, meaning the container significantly limits vapor leakoff into the atmosphere. Most CARB-compliant cans use a single integrated spout with a spring-loaded valve rather than a separate vent hole. They are legal in all 50 states, including California. Non-CARB cans with a separate vent are illegal for sale in California and several other states.

Should I store gas cans in my garage or outside?

Detached structures away from your living space are safest. An attached garage is the most common reality and is acceptable if you follow fire code limits, use approved containers, keep cans away from water heaters or furnaces with open flames, and ensure ventilation. Never store gasoline inside your home, in a basement, or near any ignition source. Store cans upright, sealed, on a concrete floor rather than wooden shelving.

How many gas cans do I need for emergency prep?

Size your stockpile to your generator’s consumption rate and your target outage window. A 3,500-watt generator burns roughly 0.35 gallons per hour at 50% load. Running 8 hours per day for 3 days consumes 8.4 gallons — two 5-gallon cans with fuel to spare. For a 7-day window with the same generator, you need five 5-gallon cans. NFPA 30’s 25-gallon residential limit caps most preppers at five standard cans, which aligns well with a 7 to 10-day supply.

Frequently Asked Questions

How long does gasoline last in a gas can?

What is the legal limit for storing gasoline at home?

Are plastic gas cans safe for long-term storage?

What does CARB-compliant mean for gas cans?

CARB stands for California Air Resources Board. CARB-compliant gas cans meet California's strict evaporative emissions standards, meaning the container significantly limits vapor leakoff into the atmosphere. Most CARB-compliant cans use a single integrated spout with a spring-loaded valve rather than a separate vent hole. They are legal in all 50 states, including California. Non-CARB cans with a separate vent are illegal for sale in California and several other states.

Should I store gas cans in my garage or outside?

How many gas cans do I need for emergency prep?

Size your stockpile to your generator's consumption rate and your target outage window. A 3,500-watt generator burns roughly 0.35 gallons per hour at 50% load. Running 8 hours per day for 3 days consumes 8.4 gallons — two 5-gallon cans with fuel to spare. For a 7-day window with the same generator, you need five 5-gallon cans. NFPA 30's 25-gallon residential limit caps most preppers at five standard cans, which aligns well with a 7 to 10-day supply.