The Norwesco 1000 Gallon Low Profile Two Compartment Septic Tank (SKU N-40198) is a green polyethylene tank built for shallow-bury septic installs where headroom and dig depth are tight. At 51 inches tall on a 60 x 127 inch footprint, it holds 1,000 gallons across two internal compartments and ships with loose plumbing plus a side inlet, so the installer sets the inlet and outlet plumbing to match the site. If you are searching for a "1000 gallon low profile septic tank," this is the Norwesco configuration that fits under shallow grade.
Specs at a glance
- Capacity: 1,000 gallons, two compartments
- Height: 51 in (low profile, for tight dig depth)
- Footprint: 60 in W x 127 in L (excavation size)
- Full water weight: ~8,340 lb (set empty, then fill)
- Material / color: Polyethylene, green
- Plumbing: Loose plumbing with side inlet (installer-set)
Will it work for your site?
This is a two-compartment design, which separates settling and clarification inside one body instead of running two single-compartment tanks in series. If you are weighing that choice, our guide on single compartment vs two compartment septic tanks walks through when each makes sense. The tank arrives with loose plumbing and a side inlet rather than pre-set fittings, so plan your inlet/outlet elevations before install; our tank plumbing system design walkthrough covers inlet, outlet, vent, and overflow tie-ins. For a residential or light-commercial septic install, confirm capacity against local code and the actual compartment volumes using the Tank Sizing Calculator and Tank Sizing Guide. See the technical drawing on this page for compartment layout, individual compartment volumes, and port locations.
Weight, handling, and approvals
Empty, this tank sets by equipment, not by hand, and full it carries roughly 8,340 pounds of water across the 60 x 127 inch footprint, so set it on a level, compacted bed and follow the manufacturer's bury and backfill instructions for a low-profile septic body. If your project is in Canada or near the border, approval scope matters: our writeup on Norwesco IAPMO and CSA B66 septic tank approvals explains how those listings line up against US plumbing codes. For low-profile hauling and field-handling considerations, see the Norwesco low-profile series field operations guide.
The mistake to avoid
The common error on a loose-plumbing, side-inlet septic tank is treating it like a pre-plumbed unit. Because the inlet and outlet plumbing ship loose, the installer is responsible for setting correct inlet/outlet elevation drop and sealing the side inlet to your run, so verify those details against the technical drawing and your local septic permit before backfilling. Get this wrong and you fight it after the tank is in the ground.
This septic tank ships LTL freight from the nearest Norwesco stocking location (Owego, NY), quoted live to your ZIP code. Get your exact rate with the Freight Cost Estimator, or call 866-418-1777 to talk through sizing, plumbing, and delivery. Freight is not included in the listed price.
