Best Stackable Water Storage Tanks Ranked

9 water tanks and containers the maker says stack.

Last updated: November 9, 2026

Stackable shapes put more water in less floor space, which matters in a garage, closet or shelter. The makers’ own words are used: Reliance says its jug stacks when empty, while the Bushman drum stacks when sealed.

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.

Best Stackable Water Storage Tanks: Under 25 gallons

  1. Reliance Aqua-Tainer 7 Gallon, 2-Pack
    #1 of 33.3Full review

    For camping and small emergency stashes in a proven rigid 7-gallon jug.

    Amazon $69.99
    $69.99
    14 gal$5Included
  2. Legacy 5-Gallon Stackable Water Tanks, 4-Pack
    #2 of 32.9Full review

    For a first emergency-water stash of small, stackable tanks that one person can carry.

    Amazon $127
    $127
    20 gal$6.35Included
  3. Saratoga Farms 5-Gallon Stackable Containers, 20 Gallons
    #3 of 32.7Full review

    For 20 gallons of portable emergency water in standard 5-gallon containers.

    Amazon $119.98
    $119.98
    20 gal$6None

Best Stackable Water Storage Tanks: 25 to 49 gallons

  1. Reliance Aqua-Tainer 7 Gallon, 4-Pack
    #1 of 33.3Full review

    For camping and small emergency stashes in a proven rigid 7-gallon jug.

    Amazon $149.99
    $149.99
    28 gal$5.36Included
  2. Legacy 5-Gallon Stackable Water Tanks, 6-Pack
    #2 of 32.9Full review

    For a first emergency-water stash of small, stackable tanks that one person can carry.

    Amazon $184.99
    $184.99
    30 gal$6.17Included
  3. Saratoga Farms 5-Gallon Stackable Containers, 40 Gallons
    #3 of 32.7Full review

    For 40 gallons of portable emergency water in standard 5-gallon containers.

    Amazon $228.95
    $228.95
    40 gal$5.72None

Best Stackable Water Storage Tanks: 50 gallons and up

  1. WaterPrepared 55 Gallon Stackable Tank
    #1 of 33.6Full 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
    $319.99
    55 gal$5.82Included
  2. Bushman 55 Gallon Plastic Drum
    #2 of 33.1Full review

    For bulk water you will pump or siphon out, at the lowest price per gallon of the 55-gallon tanks.

    Amazon $219.99
    $219.99
    55 gal$4None
  3. Saratoga Farms 5-Gallon Stackable Containers, 60 Gallons
    #3 of 32.8Full review

    For 60 gallons of portable emergency water in standard 5-gallon containers.

    Amazon $318.79
    $318.79
    60 gal$5.31None