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Plastic Septic Tanks

Plastic Septic Tanks

Plastic Septic Tanks — Comprehensive Catalog

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 built to ASTM D1998 specification with FDA 21 CFR 177.1520 resin compliance for food-contact applications. 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.

  • Norwesco

    SKU: N-44079

    Norwesco 2500 Gallon Multi-Use Underground Liquid Storage Tank

    $6,798.99
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  • Norwesco

    SKU: N-43771

    Norwesco 2650 Gallon Plastic Multi-Use Underground Liquid Storage Tank

    $7,074.61
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  • Norwesco

    SKU: N-44390

    Norwesco 3525 Gallon Multi-Use Underground Liquid Storage Tank

    $10,432.06
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  • Norwesco

    SKU: N-44876

    Norwesco 5025 Gallon Underground Water Storage Cistern Tank

    $15,798.99
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  • Norwesco

    SKU: N-44877

    Norwesco 5025 Gallon Underground Water Storage Cistern Tank with Riser

    $16,098.99
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  • Norwesco

    SKU: N-45686

    Norwesco 10000 Gallon Plastic Multi-Use Underground Liquid Storage Tank

    $20,827.57
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  • Norwesco

    SKU: N-41615

    Norwesco 15000 Gallon HDPE Underground Liquid Storage Tank

    $30,959.35
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  • Norwesco

    SKU: N-41616

    Norwesco 20000 Gallon HDPE Underground Liquid Storage Tank

    $39,670.63
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