Underground Plastic Septic Tanks

Plastic Septic Tanks Plastic septic tanks are rotomolded using polyethylene resin. Plastic septic tanks ribbed design offer a practical alternative to concrete septic tanks. Common uses:
  • Residential Homes
  • Commercial Sites
  • Cabins, Cottages, & Outhouses
  • Rv & Trailer Parks
Below ground plastic septic tanks are are available in single and double compartment varieties. Plastic septic tank manufacturers listed below are: Norwesco, Ace Roto-Mold, & Snyder Industries.
You can click on the drop down menu to help narrow down your options of which takes are approved in your state.

NameCapacityDiameterLengthWidthHeightPart NumberPrice
200 Gallon Plastic Septic Pump Tank 200 Gallons 47" 56" 43745$339.99
300 Gallon Sphere Plastic Septic Tank 300 Gallons 54" 54" 41319$409.99
300 Gallon Sphere Pump Tank - Preplumbed 300 Gallons 48.5" 48.5" 53" ST11S$475.99
300 Gallon Sphere Pump Tank - Nonplumbed 300 Gallons 48.5" 48.5" 53" PT1S$447.99
300 Gallon Septic Pump Tank 300 Gallons 54" 56" AST-0300-1$457.00
500 Gallon Sphere Pump Tank - Nonplumbed 500 Gallons 60" 60" 63" PT2S$724.99
500 Gallon 1 Compartment Septic Tank Plumbed 500 Gallons 88" 48" 44" ST21L$655.99
500 Gallon Sphere Septic Tank Preplumbed 500 Gallons 60" 60" 63" ST21S$570.99
500 Gallon 1 Compartment Septic Tank 500 Gallons 88" 48" 42" ST21LU$616.99
500 Gallon Sphere-Pump/Dosing Tank 500 Gallons 64" 67" 40785$559.99
500 Gallon 1 Compartment Plastic Septic Tank 500 Gallons 101" 51" 42" 41320$609.99
500 Gallon Septic Pump Tank 500 Gallons 63" 74" AST-0500-1$596.00
500 Gallon Low Profile Septic Tank 500 Gallons 97" 48" 50" 43522$569.99
750 Gallon Septic Tank - 1 Compartment / 1 Manhole 750 Gallons 96" 52" 62" 41712$949.99
750 Gallon Septic Tank - 1 Compartment / 2 Manholes 750 Gallons 96" 48" 63" 41814$949.99
750 Gallon Septic Tank - One Compartment 750 Gallons 60" 70" 60" AST-0750-1$731.00
750 Gallon 1 Compartment NexGen Septic Tank 750 Gallons 92" 60" 51" SII-43495$826.99
750 Gallon 2 Compartment NexGen Septic Tank 750 Gallons 92" 60" 51" SII-43499$899.99
1000 Gallon 1 Compartment Plastic Septic Tank 1000 Gallons 102" 60" 63" 41718$989.99
1000 Gallon 2 Compartment Plastic Septic Tank 1000 Gallons 102" 60" 58" 41720$1,099.99
1000 Gallon 2 Compartment Iapmo Septic Tank 1000 Gallons 102" 60" 58" 41721$972.99
1000 Gallon 2 Compartment Plastic Septic Tank 1000 Gallons 102" 60" 58" 41724$1,011.99
1000 Gallon Septic Tank - One Compartment 1000 Gallons 101" 60" 60" AST-1000-1$1,020.00
1000 Gallon Septic Tank - Two Compartment 1000 Gallons 101" 60" 60" AST-1000-2$1,173.00
1000 Gallon 1 Compartment NexGen Septic Tank 1000 Gallons 127" 60" 51" SII-42405$1,039.99
1000 Gallon 2 Compartment NexGen Septic Tank 1000 Gallons 127" 60" 51" SII-43517$977.99
1050 Gallon 1 Compartment Ribbed Septic Tank 1050 Gallons 100" 64" 62" ST51R $1,008.99
1250 Gallon 1 Compartment Plastic Septic Tank 1250 Gallons 116" 55" 68" 41741$1,199.99
1250 Gallon 2 Compartment Plastic Septic Tank 1250 Gallons 116" 55" 66" 41743$1,187.99
1250 Gallon 2 Compartment Iapmo Septic Tank 1250 Gallons 116" 55" 66" 41744$1,299.99
1250 Gallon 2 Compartment Plastic Septic Tank (Canada) 1250 Gallons 116" 55" 66" 41746$1,235.99
1250 Gallon Septic Tank - One Compartment 1250 Gallons 118" 58" 72" AST-1250-1$1,295.99
1250 Gallon Septic Tank - Two Compartment 1250 Gallons 118" 58" 72" AST-1250-2$1,474.99
1500 Gallon 1 Compartment Plastic Septic Tank 1500 Gallons 135" 55" 66" 41758$1,499.99
1500 Gallon 2 Compartment Plastic Septic Tank 1500 Gallons 135" 55" 66" 41760$1,599.99
1500 Gallon 2 Compartment Iapmo Septic Tank 1500 Gallons 135" 55" 66" 41761$1,449.99
1500 Gallon 2 Compartment Plastic Septic Tank (Canada) 1500 Gallons 135" 55" 66" 41764$1,507.99
1500 Gallon Septic Tank - One Compartment 1500 Gallons 137" 58" 72" AST-1500-1$1,521.99
1500 Gallon Septic Tank - Two Compartment 1500 Gallons 137" 58" 72" AST-1500-2$1,708.99
2000 Gallon Underground Holding Tank 2000 Gallons 126" 98" 53" 42559$2,299.99
2500 Gallon Underground Holding Tank 2500 Gallons 159" 99" 51" 44079$2,799.99
2600 Gallon Underground Holding Tank 2600 Gallons 155" 98" 51" 43770$2,999.99
2650 Gallon Underground Holding Tank 2650 Gallons 155" 98" 51" 43771$3,199.99
3525 Gallon Underground Holding Tank 3525 Gallons 211" 102" 51" 44390$4,599.99
5025 Gallon Underground Holding Tank 5025 Gallons 211" 102" 73" 44876$7,279.99