The Snyder Industries SII-44407 is a 1,725-gallon underground water tank molded in white High Density Linear Polyethylene, built for buried water storage where an above-ground footprint isn't an option. It carries a specific-gravity rating of 1.0, so it is matched to water and water-density liquids, and it holds ANSI/NSF 61 approval for potable water contact. The tank measures 157" long by 69" wide with a 51" profile, ships empty at 508 lb, and includes a 20" lid for access. If you are cross-checking listings, this is the Snyder Industries 1725 gallon tank, part number 44407.
Will it work for your site
Sized at 1,725 gallons, this underground tank holds roughly 14,386 lb of contents when full against just 508 lb empty — a load multiplier near 28x that is the single most decision-relevant number for a buried tank. Engineer the excavation, bedding, and any high-water-table ballast to the full 14,386 lb figure, never the empty shell. The 69.0 x 157.0 footprint drives the size of your hole and the bedding pad beneath it. With an SG rating of 1.0 the tank is engineered for water; do not use it for liquids heavier than water. Maximum service temperature is 160 F / 60 C. If you are still working out volume, run the numbers through our Tank Sizing Calculator and Tank Sizing Guide so the buried capacity matches real demand.
Fittings and access
As listed, the tank carries a single 20" lid for access and venting, shown on the technical drawing on this page. Inlet and outlet penetrations are not documented in this listing, so specify the bulkhead fittings you need at the time of order. Any bulkhead fitting must be paired with a gasket rated for your service liquid and for the 160 F / 60 C maximum temperature; those seals are not included and must be sized to the penetration. Confirm every planned fitting location against the drawing before excavation — a buried tank is not one you want to dig back up to correct.
Common water-storage uses
Buried polyethylene reservoirs like this one are a workhorse for rural and remote water supply, fire-protection reserves, and reuse trains where surface real estate or freeze exposure rules out an above-ground tank. For fire-reserve sizing discipline, see our guide on fire-water reservoir tank design for rural and remote sites, and for grey-water, rainwater, and condensate aggregation review our industrial water reuse tank topology breakdown. Harvesting rainwater? The first-flush diverter sizing guide pairs well with a buried reservoir.
The SII-44407 ships LTL, freight quoted live to your ZIP. Snyder molds this tank in Arkansas and Oklahoma — Marked Tree, AR and Shawnee, OK are the nearest named plants for most orders — and the estimator resolves the actual origin for your address. Get a freight number in seconds with our Freight Cost Estimator, or call 866-418-1777 and we'll quote the freight and confirm lead time for your delivery ZIP.
