OneSource Plastics' Septic catalog covers the full product range from the major US manufacturers. Search by SKU, brand, or capacity below. Bulk-pricing and consolidated-freight quotes available via 866-418-1777.
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
Rotomolded polyethylene tanks in this category are typically manufactured to ASTM D1998, and many use FDA 21 CFR 177.1520 compliant resin; certifications vary by model and manufacturer, so check each product's Specifications for what applies. 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.
The Norwesco 1500 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-41772) is a blue polyethylene Bruiser Tank built for below-grade liquid storage where above-ground space, freeze exposure, or...
The Norwesco 1500 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-41822) is a blue polyethylene Bruiser tank built for buried liquid storage. It holds 1,500 gallons and measures 70" tall, 55"...
The Norwesco 1500 Gallon Multi-Use Underground Liquid Storage Tank is a blue polyethylene Bruiser tank built for below-grade water and dilute-liquid storage where an above-ground tank isn't an option...
The Norwesco 2000 Gallon Underground Water Storage Cistern Tank is a buried polyethylene tank engineered for cistern and underground water storage where above-ground space is not an option.It is a...
The Norwesco 2000 gallon multi-use underground liquid storage tank is a white polyethylene vessel molded for buried water, wastewater, and septic-type service. It holds a 2,000-gallon working...
The Chem-Tainer 1000 Gallon One Compartment Septic Tank is a single-chamber polyethylene septic tank measuring 96 inches long, 58 inches wide, and 62 inches tall. All 1,000 gallons sit in one...
The Norwesco 2600 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-43770) is a white polyethylene tank built for below-grade liquid containment, with septic, underground storage, and multi-use...
The Norwesco 2500 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-44079) is a buried polyethylene vessel built for underground liquid storage and septic service. It holds 2,500 gallons in a...
The Norwesco 2650 Gallon Multi-Use Underground Liquid Storage Tank (SKU N-43771) is a white polyethylene tank rated to a 1.9 specific gravity and built for below-grade liquid storage and septic...
The Norwesco 3525-gallon multi-use underground tank is a single-piece polyethylene septic and liquid-storage vessel, built for buried service where a concrete tank would mean a crane, a pour...
The Norwesco 5025 Gallon Underground Water Storage Cistern Tank is a buried polyethylene cistern built for serious-volume water storage, rural fire-water reserves, and high-capacity below-grade water...
The Norwesco 5025-gallon underground cistern is a buried polyethylene water storage tank with a riser, molded for high-volume below-grade water storage where surface tanks or pump-and-haul won't fit...