Choose the format, not the hype
Reliance Aqua-Tainer 7 Gallon
Seven-gallon capacity and a protected spigot, provided you can handle roughly 60 pounds and do not stack it full.
Official specificationsReliance Aqua-Stack 5 Gallon
The manufacturer specifically permits filled stacking up to three high, subject to safe floor and shelf loading.
Official specificationsWaterBrick 3.5 Gallon
About 30 pounds full, making it easier to distribute weight across closets and under-bed areas.
Official specificationsAlexapure Collapsible 5 Gallon Container
Stores small when empty and can be filled ahead of a forecast event, but offers less rigid protection.
Official specificationsCapacity and handling comparison
| Container | Capacity | Approx. water weight | Manufacturer stacking position | Best fit |
|---|---|---|---|---|
| Reliance Aqua-Tainer | 7 gal | 58.4 lb + container | Empty only | Low-cost floor storage |
| Reliance Aqua-Stack | 5 gal | 41.7 lb + container | Up to 3 high when filled | Dense home storage |
| WaterBrick | 3.5 gal | 29.2 lb + container | Interlocking modular format | Apartments and distributed storage |
| Alexapure collapsible | 5 gal | 41.7 lb + container | Do not assume filled stacking | Pre-storm fill and evacuation |
Official specifications and purchase paths
Official pages establish the specification claims. Purchase links are separate and do not change placement.
Reliance Aqua-Tainer 7 Gallon
Best fit: Low-cost bulk storage with a protected, reversible spigot.
Hard limit: Reliance says Aqua-Tainers stack only when empty. Seven gallons of water weighs about 58 pounds before the container.
- Capacity
- 7 gallons / 26 liters
- Empty weight
- 2 lb
- Footprint
- 11.5 x 11.25 x 15.75 in
Reliance Aqua-Stack 5 Gallon
Best fit: Dense home storage where the manufacturer specifically permits filled stacking.
Hard limit: A filled unit is roughly 44 pounds. Verify the floor, shelf, and access path can support the load.
- Capacity
- 5 gallons / 20 liters
- Empty weight
- 2.4 lb
- Stacking claim
- Up to three high when filled
WaterBrick 3.5 Gallon
Best fit: Apartments, smaller adults, and storage spaces where 5- to 7-gallon units are too heavy.
Hard limit: More containers and caps are required to reach the same total volume as larger formats.
- Capacity
- 3.5 gallons
- Filled planning weight
- About 30 lb
- Format
- Interlocking, modular container
Alexapure Collapsible 5 Gallon Container
Best fit: A compact empty container to fill before a forecast event or carry during evacuation.
Hard limit: Collapsible containers trade rigid protection for storage convenience; inspect for leaks and follow the product instructions.
- Capacity
- 5 gallons
- Material claim
- BPA-free polyethylene
- Format
- Collapsible with dispensing feature
Container acceptance test
- 01
Confirm the container is intended for drinking-water or food use and has never held toxic material.
- 02
Fill it outdoors or over a drain, close every cap, dry the exterior, and check for seepage overnight.
- 03
Lift and carry the filled container through the actual route without twisting or overreaching.
- 04
Test dispensing into a cup without touching the spigot or contaminating the opening.
- 05
Label the fill date, store it cool and away from sunlight and chemicals, and follow CDC rotation guidance.
Container and storage sources
Guidance and specifications change. Follow the current local notice, official instructions, and exact model manual.