Shopping Cart

Your cart is empty.

Your cart is empty.

Polylok 20' x 12' Septic Tank Riser

Free shipping on orders over $29.99

$100.00

$ 40 .99 $40.99

In Stock
  • This model has been replaced with part number: 3009-R12-NG as of 2021
  • Accepts Polylok 20" Riser Safety Screens
  • Made of high density polyethylene which won’t shatter
  • Structural ribs inside prevent frost from adhering to the riser in frost prone areas
  • Made in the USA
  • Riser gasket sold separate (Part Number: 3009-HR)



Product Description

Polylok Risers
Polylok 20"x12" Septic Tank Riser

Polylok 20"x12" Septic Tank Riser

  • Watertight and airtight design
  • Made with the highest UV available to prevent fading
  • Made of high density Polyethylene which won’t shatter like some Polypropylene risers
  • Structural ribs inside the riser and tear off ring on the outside prevent frost from adhering to the riser
  • Made in the United States

Polylok 20"x12" Septic Tank Riser

Polylok 20"x6'' Septic Tank Riser

Polylok 20"x3" Septic Tank Riser / Riser Pan

Polylok 20"x2" Septic Tank Riser

The Polylok 20" riser family offers the greatest flexibility in reaching your desired stacking height. Whether its 2 inches or 60 inches, Polylok has the products you need. All Polylok risers are made of high density polyethylene and are manufactured in the United States. Polylok risers are designed to be watertight and airtight. Polylok risers are made with the highest UV available to prevent fading. The structural ribs inside the riser and tear off ring on the outside prevent frost from adhering to the riser.

Polylok 20" Septic Tank Risers work with Polylok 20" products such as:

  • Polylok 20"x12" Riser - Part Number: 3009-R12-NG
  • Polylok 20"x6" Riser - Part Number: 3009-NG
  • Polylok 20"x3" Riser / Riser Pan - Part Number: 3009-LPRP
  • Polylok 20"x2" Riser - Part Number: 3009-GR2
  • Polylok 20" Riser Safety Screen - Part Number: 3009-SS
  • Polylok 20" Riser Cover - Part Number: 3009-RC
  • Polylok 20" Flat Cover - Part Number: 3017-C20
  • Polylok 20" Flat Grate - Part Number: 3017-G20
  • Polylok 20"/24"" Riser Adapter Ring - Part Number: 3009-AR
  • Polylok 20" Riser-to-Riser Adapter Ring - Part Number: 3009-RTR20
  • Polylok 20" Round Catch Basin (6 Hole) - Part Number: 3017-20CG6
  • Polylok 20" Round Catch Basin (7 Hole) - Part Number: 3017-207G
  • Polylok 20" Round Catch Basin (8 Hole) - Part Number: 3017-20CG
  • Polylok 20" Round Distribution Box (6 Hole) - Part Number: 3017-206
  • Polylok 20" Round Distribution Box (7 Hole) - Part Number: 3017-207
  • Polylok 20" Round Distribution Box (8 Hole) - Part Number: 3017-20

The PUG
Reviewed in the United States on February 17, 2025
Does exactly what it’s designed to do. Installation was straight forward and able to be done with basic hand tools.
Stephan Nicholls
Reviewed in Canada on September 24, 2024
Came quickly fit perfectly
Harold
Reviewed in the United States on August 8, 2024
Product fit fine and these risers are hard to locate. Would have liked a set of screws as you need d square stainless steel.
Timothy
Reviewed in Canada on December 27, 2024
Fit great
Christina Myers
Reviewed in the United States on April 16, 2023
The lids compatible with these risers come with hardware.... these extensions do not. Just be aware to order hardware separate. If these risers are attached with no hardware standard dirt settling will detach these and damage your system over time. Great product... but the screws are 100% required.... so it's odd their not included.
Maureen G
Reviewed in the United States on January 13, 2021
Great product! Came with gaskets and screws. Genuine. Fitment was great.
Jasmine & Morgan
Reviewed in the United States on September 6, 2019
We had to buy a new one cause the old one was busted. It fit perfectly. And works amazing
Brent
Reviewed in the United States on June 26, 2019
Way easier, less expensive and delivery to my rural location a huge plus
Jay
Reviewed in the United States on May 16, 2019
Wow; received these in 2 days after ordering. Risers are well built and already have a gasket installed on the bottom. Very easy to install. These came with 6 stainless steel screws for each riser ; however they are Phillip head screws; square head screws would have made install a little easier; All in all ; I am very happy with the risers; took less than 10 minutes to install . Thanks for a great product.
M. Gotts
Reviewed in the United States on March 29, 2017
It's difficult to "love" a septic tank riser, but that said, this did exactly what I needed. Project was actually a repair to a sump pump. The 20-in diameter concrete sump had been buried 18-in below ground and then stupidly bricked over by the previous home owner. So when the pump eventually failed, we had to jackhammer it open for access and repair. I wanted to extend the sump to ground level and have a lid. I used these PolyLock risers and a lid to extend the 20-in diameter concrete sump pipe level to the surface (BTW, I tried getting just 18-in of the concrete pipe, but it is sold in minimum 10-ft lengths that would need a small crane to move). Anyway, project came out great.
Recommended Products

$17.30

$ 7 .99 $7.99

4.7
Select Option

$29.99

$ 13 .99 $13.99

4.5
Select Option

$21.84

$ 9 .99 $9.99

4.6
Select Option