The Norwesco 1250 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-44466) is a one-compartment, IAPMO-approved polyethylene tank built for below-grade water and water-like liquid storage. It ships in blue polyethylene, holds 1,250 gallons, and measures 116" long by 55" wide by 70" high with a 20" manhole cover for access and a 4" outlet for plumbing. It arrives as a plumb-ready package: one 20" manhole cover, gaskets, and outlet tees ship with the tank, not as separate line items. At 436 lb empty it is manageable to set with the right equipment before backfill. If you are working through burial depth, plumbing runs, or reserve capacity, our Tank Sizing Calculator and Tank Sizing Guide walk you through the math.
Will it do the job
This is an underground multi-use liquid tank rated to a maximum service temperature of 130 F / 54 C, with IAPMO approval on record. It is built for water and water-like liquids — the specific-gravity rating for this SKU is not published, so confirm liquid compatibility and SG with us at 866-418-1777 before ordering rather than assuming any liquid is fair game. Empty it weighs 436 lb; full of water it carries roughly 10,425 lb. That 24x swing is what drives both the set-and-rig plan and the flotation caution below, so the excavation, bedding, and backfill all have to be engineered to support and confine the full load. Come off the 4" outlet and use the 20" manhole cover for inspection and cleanout access; the included gaskets and tees mean the fitting connections are ready to plumb.
What it costs to get there
N-44466 ships LTL freight, quoted live to your ZIP. Norwesco builds this tank at four plants across the country — Lancaster, OH; Owego, NY; Tooele, UT; and Washougal, WA — so wherever you are, we route from the nearest one to keep the freight leg short. Run your ZIP through the Freight Cost Estimator for a real number, or call 866-418-1777 and we will quote it with you.
The mistake to avoid
The failure mode on an underground tank is almost always the hole, not the tank. Do not treat this like an above-ground cylinder dropped in a trench — an underground poly tank needs the manufacturer-specified bedding and evenly compacted backfill around its full circumference, and at 436 lb empty against ~10,425 lb full it should never be set empty in an area prone to high groundwater without following Norwesco's installation guidance, or it can float or deform. Confirm your outlet and manhole layout against the technical drawing on this page before you excavate, and verify the footprint (55.0 x 116.0 in) fits your dig with working room to compact around it.
Ready to move on 1,250 gallons of underground storage? Get your live LTL quote through the Freight Cost Estimator or call 866-418-1777. To size the tank and reserve to your site before you dig, start with our Tank Sizing Guide.
Freight and documents
Ships from: Lancaster, OH; Tooele, UT; Owego, NY; Washougal, WA. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Norwesco 44466.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
