The Norwesco 750 Gallon One Compartment Septic Tank is an IAPMO-certified, low-profile polyethylene tank built for residential and light-commercial septic installs where burial depth and headroom are tight. At 51 inches high on a 60 x 92-inch footprint, it sits shallow in the excavation, which matters on sites with a high water table or shallow utilities. The single-compartment green poly body ships with loose plumbing so the installer sets the outlet tee height to local code on site. Quick read: 750 gal | 51 H x 60 W x 92 L in | ~6,255 lb full | green poly, single compartment | IAPMO certified.
Will it work for your install?
This is a 750-gallon low-profile septic tank measuring 51 in high, 60 in wide, and 92 in long, with a 60 x 92-inch footprint. The technical drawing on this page documents a 1-inch top-of-outlet tee and the outlet connection; reference that drawing for exact locations before you set grade, and confirm the inlet, vent, and any additional tap points with us before ordering, since the loose-plumbing kit is fitted on site. Filled with water at capacity the tank carries roughly 6,255 lb, so confirm your bedding, backfill, and anti-flotation plan can hold a full tank in saturated soil. Note that this Norwesco carries no published specific-gravity rating beyond standard septic duty (the spec sheet lists none) — for effluent heavier than standard wastewater, confirm suitability with us at 866-418-1777 before ordering. For sizing against bedroom count or daily flow, run the numbers with our Tank Sizing Calculator and Tank Sizing Guide, and walk the connections with our tank plumbing system design walkthrough for inlet, outlet, vent, and overflow tie-ins.
Certification and code scope
This Norwesco low-profile septic tank carries IAPMO certification. Whether IAPMO satisfies your jurisdiction — and how it interacts with CSA B66 for Canadian or cross-border work — is worth confirming with your local plumbing or health authority before you order. Our guide on Norwesco IAPMO and CSA B66 septic tank approvals breaks down the scope of each so you know what your inspector will accept.
The mistake to avoid
The common error on a low-profile septic tank is treating it like a hauling tank or setting the outlet tee at the wrong invert. This is a buried, gravity-fed septic vessel — get the outlet tee elevation right off the technical drawing and your local code, match the loose-plumbing grommets, gaskets, and tee to your actual inlet and outlet pipe sizes, and plan flotation control, because an empty poly tank in wet soil will lift. If you also run a low-profile Norwesco for hauling or transfer service, our Norwesco low-profile hauling tank series field guide covers the procurement and field-ops differences between buried septic and over-the-road duty.
This tank ships LTL freight from the nearest Norwesco plant — Owego, NY; Shawnee, OK; or St. Bonifacius, MN — with the closest stocking point confirmed at order time and freight quoted live to your ZIP. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to confirm the gasket and grommet seals, outlet-tee-to-pipe fitment, and lead time before you order.
