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Plastic Septic Tanks in Shawnee, OK

These are the Norwesco plastic septic tanks molded at Norwesco's Shawnee, OK plant in sizes from 200 to 2,500 gallons. When Shawnee is the Norwesco plant closest to you, every tank page quotes LTL freight from Shawnee to your ZIP.

Septic tanks, pump tanks and related parts for below-ground use. See every size from every plant in Norwesco Plastic Septic tanks, or everything made in Shawnee in Norwesco Tanks in Shawnee, OK.

Before you order

  • Know your liquid. Standard tanks are rated to 1.5 specific gravity (12.52 lbs per gallon). Heavy duty tanks are rated to 1.9 (15.87 lbs per gallon).
  • Above or below ground. Underground and septic tanks are made to be buried; above-ground tanks are not.
  • Accessories ship with the tank. Bands, saddles and stands ship from the same plant as the tank.
  • Questions? Call 866-418-1777.
  • Norwesco Manhole Extension 20 InchDia. x 15 InchH

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    Norwesco

    SKU: N-62397

    Norwesco 20 Inch Manhole Extension - 15 Inch Tall

    $150.02
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  • Norwesco 15 Inch Manhole Extension

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    Norwesco

    SKU: N-63833

    Norwesco 15 Inch Manhole Extension

    $170.02
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  • Norwesco 24 Inch Manhole Extension — product image

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    Norwesco

    SKU: N-63834

    Norwesco 24 Inch Manhole Extension

    $190.03
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  • Norwesco 200 Gallon Plastic Septic Pump Tank. 200 gallon capacity; Polyethylene; Black; 56" H x 47" W x 47" L; fittings: 1
    Dimensional spec drawing for Norwesco 200 Gallon Pump Tank (47" L x 47" W x 56" H)

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    Norwesco

    SKU: N-43745

    Norwesco 200 Gallon Plastic Septic Pump Tank

    $660.12
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  • Norwesco 300 Gallon Septic Pump Tank. 300 gallon capacity; Polyethylene; Black; 54" H x 54" W x 54" L; fittings: 1 Manway /
    Dimensional spec drawing for Norwesco 300 Gallon Pump Tank (54" L x 54" W x 54" H)

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    Norwesco

    SKU: N-41319

    Norwesco 300 Gallon Septic Pump Tank

    $940.18
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  • Norwesco 500 Gallon Plastic Septic Pump Tank. 500 gallon capacity; Polyethylene; Black; 67" H x 64" W x 64" L; fittings: 1
    Dimensional spec drawing for Norwesco 500 Gallon Pump Tank (64" L x 64" W x 67" H)

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    Norwesco

    SKU: N-40785

    Norwesco 500 Gallon Plastic Septic Pump Tank

    $1,220.23
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  • Norwesco 500 Gallon One Compartment Septic Tank with Low Profile Design. 500 gallon capacity; Polyethylene; Green; 42" H x
    Dimensional spec drawing for Norwesco 500 Gallon Low Profile Septic Tank (97" L x 48" W x 42" H)

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    Norwesco

    SKU: N-43522

    Norwesco 500 Gallon One Compartment Septic Tank with Low Profile Design

    $1,300.25
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