WaterPrepared 55 Gallon Stackable Tank
For a household that wants a ready-to-use 55-gallon emergency tank with a spigot, at a premium over a bare drum.
Amazon $319.99$319.99
55 gal$5.82Included
Stored water is the first thing most emergency plans ask for, and the usual guidance is a gallon per person per day. These rankings cover tanks, drums and stackable container kits sold to hold drinking water at home, in a camper or on an off-grid property: rigid poly tanks, 55-gallon drums, multi-packs of 5-gallon containers and RV fresh-water tanks. Rain barrels sold with no potable rating, collapsible bladders, water bottles, filters, steel and fuel tanks, and underground cisterns are left out.
Size comes first, and the ranking pages group products by total gallons stored: under 25 gallons, 25 to 49 gallons and 50 gallons and up. A pack counts all its containers, so a four-pack of 5-gallon containers is a 20-gallon product.
Potable claims matter because many tanks are sold for water and other liquids. Some makers publish NSF or food-grade ratings and BPA-free resin; others only call the tank “water storage.” A claim the maker doesn’t publish is marked, not assumed.
Spigot and stacking decide how usable the water is. A tank with a spigot fills a pot or a hose without a pump, and a stackable shape stores more in less floor space. Closed-head drums have neither and need a bung wrench and a pump.
Light is the quiet one. Blue and black tanks block sunlight and slow algae growth; translucent white tanks show the level at a glance but should sit out of the sun.
Stored water still needs care: rotate or treat it on the maker’s schedule, and treat water from any source you can’t vouch for.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
RecPro 100 Gallon RV Fresh Water Tank
For a fixed 100-gallon potable tank in a camper, bus or off-grid cabin.
Amazon $299.95$299.95
100 gal$30.5 in. outlet
Shop by Size
Under 25 gallons
11 rankedUnder 25 gallons: jugs, small packs of stackable containers and compact tanks.
Top rated: Reliance Aqua-Tainer 7 Gallon, 2-Pack $69.99
25 to 49 gallons
8 ranked25 to 49 gallons: a few days to a few weeks of water for a household.
Top rated: WaterPrepared 35 Gallon Utility Tank $157.99
50 gallons and up
6 ranked50 gallons and up: drums, big tanks and multi-container kits for a longer outage.
Top rated: WaterPrepared 55 Gallon Stackable Tank $319.99
Narrow It Down
By budget
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Best Small Water Storage Tanks
- Reliance Aqua-Tainer 7 Gallon, 2-Pack#1 of 11Full review
For camping and small emergency stashes in a proven rigid 7-gallon jug.
Amazon $69.99$69.9914 gal$5Included - RomoTech Domed Tank 16 Gal (Natural)#2 of 11Full review
For a mid-sized translucent reservoir where seeing the level matters more than the price per gallon.
Amazon $143.99$143.9916 gal$90.8 in. outlet - RomoTech Domed Tank 16 Gal (Black)#3 of 11Full review
The 16-gallon domed tank in opaque black, for outdoor use where blocking light keeps algae down.
Amazon $157.99$157.9916 gal$9.870.8 in. outlet - Legacy 5-Gallon Stackable Water Tanks, 4-Pack#4 of 11Full review
For a first emergency-water stash of small, stackable tanks that one person can carry.
Amazon $127$12720 gal$6.35Included - RomoTech Domed Tank 8 Gal (Natural)#5 of 11Full review
For a small, light translucent tank on a bench or in a truck bed, at a high price per gallon.
Amazon $128.99$128.998 gal$16.120.8 in. outlet
Best Mid-Size Water Storage Tanks
- WaterPrepared 35 Gallon Utility Tank#1 of 8Full review
For a portable 35-gallon drinking-water tank that rides in a truck bed or trailer.
Amazon $157.99$157.9935 gal$4.51Included - Reliance Aqua-Tainer 7 Gallon, 4-Pack#2 of 8Full review
For camping and small emergency stashes in a proven rigid 7-gallon jug.
Amazon $149.99$149.9928 gal$5.36Included - RomoTech Domed Tank 30 Gal (Black)#3 of 8Full review
For a 30-gallon opaque square tank with a 5 in. fill lid and an NSF-certified resin.
Amazon $206.50$206.5030 gal$6.880.8 in. outlet - RomoTech Domed Tank 26 Gal (Black)#4 of 8Full review
For a 26-gallon opaque tank that fits under a bench or in a truck bed.
Amazon $189.99$189.9926 gal$7.310.8 in. outlet - Legacy 5-Gallon Stackable Water Tanks, 6-Pack#5 of 8Full review
For a first emergency-water stash of small, stackable tanks that one person can carry.
Amazon $184.99$184.9930 gal$6.17Included
Best Large Water Storage Tanks
- WaterPrepared 55 Gallon Stackable Tank#1 of 6Full review
For a household that wants a ready-to-use 55-gallon emergency tank with a spigot, at a premium over a bare drum.
Amazon $319.99$319.9955 gal$5.82Included - RecPro 100 Gallon RV Fresh Water Tank#2 of 6Full review
For a fixed 100-gallon potable tank in a camper, bus or off-grid cabin.
Amazon $299.95$299.95100 gal$30.5 in. outlet - RecPro 65 Gallon RV Fresh Water Tank#3 of 6Full review
For a fixed 65-gallon potable tank in a camper, bus or off-grid cabin.
Amazon $249.95$249.9565 gal$3.850.5 in. outlet - RecPro 75 Gallon RV Fresh Water Tank#4 of 6Full review
For a fixed 75-gallon potable tank in a camper, bus or off-grid cabin.
Amazon $289.95$289.9575 gal$3.870.5 in. outlet - Bushman 55 Gallon Plastic Drum#5 of 6Full review
For bulk water you will pump or siphon out, at the lowest price per gallon of the 55-gallon tanks.
Amazon $219.99$219.9955 gal$4None
How We Rank
Each product is ranked against others of the same size and scored on its price per gallon, its potable-water claims, its features and its warranty.
| Factor | Measures | Weight |
|---|---|---|
| Value | price per gallon stored | 40% |
| Potable claims | NSF certification, food-grade materials and BPA-free, as published | 25% |
| Features | an included spigot or outlet fitting, stackability and UV resistance | 20% |
| Warranty | the maker's warranty | 15% |
How we rank explains each factor in full.