The Plastic Septic Tanks catalog at OneSource Plastics includes every active manufacturer SKU across Norwesco, Snyder Industries, Chem-Tainer, Enduraplas, and Bushman — rotomolded polyethylene tanks. Certifications such as ASTM D1998 construction and FDA 21 CFR 177.1520 food-contact resin compliance vary by model and manufacturer, so check each product's Specifications for what applies to that tank. Use the sort and filter controls below to narrow by capacity, brand, or dimensions.
Applications
Residential and small-commercial septic systems (single- and dual-compartment)
Low-profile installation under driveways or high water tables (10"-18" cover)
Holding-tank applications where municipal sewer is unavailable
Aerobic treatment systems (ATU) and pump chambers
Compliance & Standards
All polyethylene tanks in this category are rotomolded from FDA 21 CFR 177.1520 compliant resin and manufactured to ASTM D1998 specification for upright polyethylene storage. UV stabilizers are co-extruded into the resin for outdoor installation. Maximum operating temperature 120°F for HDPE; higher for XLPE (cross-linked polyethylene). NSF 61 certified models available on request for potable drinking water applications — call to specify.
Freight & Delivery
Tanks ship LTL motor freight from the closest stocking warehouse to your delivery ZIP. Typical transit 5-10 business days. Liftgate available at delivery (per-shipment fee). Always inspect at delivery and note any damage on the bill of lading before signing — that is the LTL carrier claim trigger. Bulk-order consolidation reduces per-tank freight 25-40%. Same-business-day quotes: call 866-418-1777 with MPN, quantity, and delivery ZIP.
Sizing & Selection
Pick capacity first, then verify dimensions against your installation footprint. Most rotomolded tanks are built to OEM standard dimensions ± standard rotational-molding tolerance of ±2-3%. Vertical tanks need flat-pad foundation; horizontal/leg tanks need stand or cradle (check listing — some are sold with integrated stand, others require separate stand or band purchase). Application engineering: call 866-418-1777 for sizing, layout, and accessory recommendations.
A 300 gallon grey pump tank for a septic dose chamber or a small holding job
The Snyder Industries 300 gallon septic pump tank, part number 5260000W94201, is a grey polyethylene tank 48.5 inches...
A 525 gallon green septic pump tank approved for Florida installs
The Norwesco 525 gallon septic pump tank, part number 44830, is the Florida-only version of Norwesco's larger buried pump chamber: a...
A 300 gallon preplumbed septic pump tank for a dosed drain field
Snyder part number 5260000W94202 (our SKU SII-5260000W94202) is a 300 gallon septic pump tank in black polyethylene, 48.5 inches in...
A 1000 gallon low profile two compartment septic tank for the Carolinas
The Norwesco 1000 gallon two compartment septic tank for SC and NC, part number 43510, is a green polyethylene tank 127 inches...
A 500 gallon septic pump tank for a dosing or lift station
The Norwesco 500 gallon plastic septic pump tank, part number 40785, is a black polyethylene tank 64 inches in diameter and 67 inches tall,...
A 500 gallon one compartment septic tank
The Norwesco 500 gallon plastic one compartment septic tank, part number 41320, is a yellow polyethylene tank 101 inches long, 51 inches wide and 47 inches...
A 500 gallon septic pump tank, 60 inches across, with 4 inch inlet and outlet
Snyder part number 5170000W94201, sold here as SII-PT2S, is a 500 gallon septic pump tank in black polyethylene, 60...
A 525 gallon septic pump tank for a system that lifts effluent to the drainfield
The Norwesco 525 gallon plastic septic pump tank, part number 44831, is a black polyethylene below ground tank 64...
A 500 gallon low profile septic tank for a shallow excavation
The Norwesco 500 gallon one compartment septic tank with low profile design, part number 43522, is a green polyethylene tank 97 inches...
A 500 gallon low profile holding tank that slides under a job shack
The Norwesco 500 gallon job shack holding tank, part number 44643, is a white polyethylene tank 130 inches long, 52 inches wide...
A 500 gallon septic pump tank for a lift to the drainfield
Snyder part number 5170000W94203 is a 500 gallon septic pump tank in grey polyethylene, 60 inches long, 60 inches wide and 63 inches tall,...
A 900 gallon two compartment low profile septic tank for Florida installations
The Norwesco 900 gallon two compartment low profile septic tank, part number 43527, is a green polyethylene tank 126...