For a first emergency-water stash of small, stackable tanks that one person can carry.
Amazon $184.99The Legacy 5-Gallon Stackable Water Tanks, 6-Pack rates 2.9 among 25 to 49 gallons water storage tanks; the Legacy 5-Gallon Stackable Water Tanks, 4-Pack rates 2.9 among under 25 gallons ones. The Legacy 5-Gallon Stackable Water Tanks, 4-Pack costs $57.99 less ($127 vs $184.99).
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.

For a first emergency-water stash of small, stackable tanks that one person can carry.
Amazon $127Scores side by side
These two sit in different size classes (25 to 49 gallons and under 25 gallons), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Legacy 5-Gallon Stackable Water Tanks, 6-Pack | Legacy 5-Gallon Stackable Water Tanks, 4-Pack |
|---|---|---|
| Overall rating | 2.9/5 | 2.9/5 |
| Value 40% | 37 $6.17 per gallon ($184.99, 30 gal) | 36 $6.35 per gallon ($127, 20 gal) |
| Potable claims 25% | 50 food-grade, BPA free | 50 food-grade, BPA free |
| Features 20% | 65 spigot included, stackable | 65 spigot included, stackable |
| Warranty 15% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Legacy 5-Gallon Stackable Water Tanks, 6-Pack | Legacy 5-Gallon Stackable Water Tanks, 4-Pack | |
|---|---|---|
| Capacity | ||
| Total capacity | 30 gal | 20 gal |
| Containers | 6 containers | 4 containers |
| Size (each) | 15 x 10 x 12 in | 12 x 10 x 15 in |
| Water safety | ||
| Material | Plastic | Plastic |
| Food grade | Yes | Yes |
| BPA free | Yes | Yes |
| Features | ||
| Spigot or outlet | Included | Included |
| Stackable | Yes | Yes |