Polyethylene (Plastic) Septic Tanks
General Information:
- Models available from 300 - 1500 gallons
- Low profile septic tank design perfect for more challenging installs
- Seamless one piece septic tank design
- Non-corrosive for long life
- Lightweight for easy installation
- IAPMO and CSA compliant
- Great overall value
Click on a pdf logo below for a PDF drawing. Get free Adobe Reader here.
Tank dimensions and fitting placement may vary slightly. Specifications are subject to change without notice.
The pricing below is a factory direct price only. The price does not include freight or tax.
| Single Compartment Septic Tanks | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Type | Capacity | Weight | In/Out* | Dimensions | Price | |
| LSIST11S | Sphere | 300 gallon | 125 lbs | 39" / 36" | 49"long x 49"wide x 50"tall | $873 | |
| LSIST21S | Sphere | 500 gallon | 215 lbs | 45" / 42" | 60"long x 60"wide x 60"tall | $1,085 | |
| LSIST45802 | Low Pro | 500 gallon | 190 lbs | 35" / 32" | 88"long x 48"wide x 42"tall | $1,357 |
* Inlet and outlet measurements are calculated from the bottom of the tank to the bottom of the inlet and outlet pipe.
These poly septic tanks are pre-plumbed with 4" SCH-40 inlet and outlet, gaskets, and manhole covers. With the exception of the 300-gallon and 500-gallon sphere tanks,
ABOVE SEPTIC TANKS ARE NOT TO BE USED AS PUMP TANKS OR HOLDING TANKS WITH PUMPS IN THEM.
Heavy Duty "NexGen" tank ( brochure )
These poly septic tanks are pre-plumbed with 4" SCH-40 inlet and outlet, sanitary tees, gaskets, and manhole covers. These low-profile poly septic tanks have a unique heavy-duty design, for those tougher installations. Top male ribs provide added strength against top loading. New bottom male ribs counteract high hydrostatic forces. Radial Reinforcement Bands and tie tubes provide superior radial strength. These tanks can be installed without water and can be backfilled with native free-flowing soil. All models of the NexGen low-profile poly septic tanks can be used as holding/pump tanks. Can withstand up to 3 feet of cover.
NexGen D2 Poly Septic Tanks (IAPMO LISTED)
Approved for States: AZ, CA, OR, NV, WA
The pricing below is a factory direct price only. The price does not include freight or tax.
| Heavy Duty Low-Profile Septic Tanks | |||||||
|---|---|---|---|---|---|---|---|
| Part Number | Type | Capacity | Weight | In/Out* | Dimensions | Price | |
| LSI44510 | NexGen | 750 gallon | 267 lbs | 43" / 40" | 92"long x 60"wide x 51"tall | $1,815 | |
| LSI44482 | NexGen | 1000 gallon | 341 lbs | 43" / 40" | 127"long x 60"wide x 51"tall | $1,956 | |
| LSI44483 | NexGen | 1250 gallon | 432 lbs | 43" / 40" | 157"long x 60"wide x 51"tall | $2,486 | |
| LSI44484 | NexGen | 1500 gallon | 560 lbs | 43" / 40" | 157"long x 69"wide x 51"tall | $2,945 |
* Inlet and outlet measurements are calculated from the bottom of the tank to the bottom of the inlet and outlet pipe
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Nex Gen D2 Poly Septic Tanks (NON-IAPMO)
The pricing below is a factory direct price only. The price does not include freight or tax.
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| Heavy Duty Low-Profile Septic Tanks | Double Compartment - Includes Baffle | ||||||
|---|---|---|---|---|---|---|---|
| Part Number | Type | Capacity | Weight | In/Out* | Dimensions | Price | |
| LSI44510 | NexGen | 750 gallon | 267 lbs | 43" / 40" | 92"long x 60"wide x 51"tall | $1,815 | |
| LSI44482 | NexGen | 1000 gallon | 341 lbs | 43" / 40" | 127"long x 60"wide x 51"tall | $1,956 | |
| LSI44483 | NexGen | 1250 gallon | 432 lbs | 43" / 40" | 157"long x 60"wide x 51"tall | $2,486 | |
| LSI44484 | NexGen | 1500 gallon | 560 lbs | 43" / 40" | 157"long x 69"wide x 51"tall | $2,945 |
| Heavy Duty Low-Profile Septic Tanks | Single Compartment - No Baffle | ||||||
|---|---|---|---|---|---|---|---|
| Part Number | Type | Capacity | Weight | In/Out* | Dimensions | Price | |
| LSI43495 | NexGen | 750 gallon | 258 lbs | 43" / 40" | 92"long x 60"wide x 51"tall | $1,594 | |
| LSI42405 | NexGen | 1000 gallon | 340 lbs | 43" / 40" | 127"long x 60"wide x 51"tall | $1,726 | |
| LSI43519 | NexGen | 1250 gallon | 399 lbs | 43" / 40" | 157"long x 60"wide x 51"tall | $2,195 | |
| LSI43518 | NexGen | 1500 gallon | 516 lbs | 43" / 40" | 157"long x 69"wide x 51"tall | $2,599 |
* Inlet and outlet measurements are calculated from the bottom of the tank to the bottom of the inlet and outlet pipe
* Inlet and outlet measurements are calculated from the bottom of the tank to the bottom of the inlet and outlet pipe
Available Accessories
- Schedule 40 PVC Inlet Tee Assembly
- Schedule 40 PVC Outlet Tee Assembly
- Tamper-Resistant Bolt Kit (4 bolts, 1 driver bit)
- Extra Poly Lids
- 20" Diameter Manhole Extensions (6", 15", 24" Heights)
- 20" Poly Lid with 6" Inspection Port
- Septic Tank Effluent Filters
- 4-Hole or 6-Hole Distribution Boxes
- Diverter valves
- Other accessories for complete septic systems
