The 300 Gallon Green Doorway Water Tank from Norwesco is built to pass through standard doorways and tight openings: its 25-inch width and 59-inch length give it a narrow 25.0 x 59.0 inch footprint, while standing 65 inches tall. That slim profile is the whole point of a doorway tank - it gets bulk water storage into basements, utility rooms, and shed corners that a wider vertical tank cannot reach. It holds 300 gallons in a green polyethylene body that limits light penetration to discourage algae growth, and it is the same form factor offered in white if you prefer a lighter color for an exposed spot.
Will it work for your site?
Full of water this Norwesco 300 gallon doorway tank weighs about 2,502 pounds, so plan the floor or pad to carry that load before you fill it. The polyethylene wall is rated to a 1.5 specific gravity, meaning it is built to hold contents up to 50 percent heavier than water - the maximum rated contents weight is 3,753 pounds. For plain water duty that gives you real margin, and the same 1.5-SG wall also qualifies this tank for heavier-than-water liquids up to 1.5 specific gravity; confirm chemical compatibility before any non-water service. Use the Tank Sizing Calculator and the Tank Sizing Guide to confirm 300 gallons matches your draw-down and refill cycle before you commit to the doorway form factor.
How you will connect to it
Inlet and outlet fitting sizes are not published in our spec record for this tank, and they can vary by production run, so confirm the exact fitting and outlet sizes per order before you order plumbing - call 866-418-1777 and we will verify what ships on your unit. Reference the technical drawing on this page for the bulkhead and port layout as well.
Common mistake to avoid
The doorway shape is narrow and tall, which makes it more tippy than a squat vertical tank, so set it on a flat, fully supported surface and never on legs or an uneven floor. The 65-inch height over a 25-inch base means the center of gravity climbs as it fills - secure it against a wall or with strapping in any space where it could be bumped. Just as important, confirm your access path actually clears 25 inches before delivery day; the tank only earns its keep if it fits through the opening you bought it for.
Freight
This tank ships LTL freight, quoted live to your ZIP code. Norwesco molds it only at West-coast plants - Hanford, CA; Tooele, UT; and Washougal, WA - so your rate is set from the nearest of those locations, and East or Central buyers should expect the quote to reflect that distance. Get an exact number with the Freight Cost Estimator, or call 866-418-1777 and we will quote it for you. For more on selecting and placing one of these, see our 300 Gallon Green Doorway Water Tank buyer's guide, the matching white doorway variant guide, and our broader water reuse tank topology guide.
3 Year Warranty
