Skip to content
20" x 20" Septic Tank Riser Kit Flat Lid
$242.00 - $255.00
$255.00
$242.00 - $255.00
$255.00
  7 Reviews

20" x 20" Septic Tank Riser Kit

Tuf-Tite
The 20" x 20" Septic Tank Riser Kit is a complete septic riser kit that comes with everything you need to install and bring your septic system to grade.
Price: Flat Lid

Ordering Online?

We ship daily: checking..
free shipping

Important Info

Please read the description & ensure that you are ordering the correct diameter and height riser kit. If the incorrect size is ordered, return shipping is the customers responsibility.
Riser Sizer - Read the guide New!

Square Opening? Use our Riser-size Calculator!

SKU TUT-RIS-KF20X20
  Support Video
  • Key Features
  • Specs
  • Warranty
  • What's In The Box

  • The Tuf-Tite Septic Tank Riser Kit is the answer to simplifying access to your septic tank and enhancing the overall efficiency of your septic system. This kit is an indispensable addition for homeowners and professionals looking to make septic maintenance a breeze.

    Here's why it's a must-have:


    • Enhanced Access: Say goodbye to laborious and messy digging to reach your septic tank. The Tuf-Tite Septic Tank Riser Kit elevates your access point, making routine inspections, pump-outs, and maintenance tasks a swift and clean process.
    • Durable Construction: Crafted from high-density polyethylene (HDPE), this kit is built to withstand the harshest environmental conditions and resist corrosion, ensuring its longevity and reliability.
    • Versatile Sizing: Available in various sizes, the kit accommodates different septic tank models and configurations. Choose the one that fits your system perfectly for a seamless installation.
    • Seal and Safety: The included Tuf-Tite septic tank lid provides a secure seal to prevent unauthorized access and ensures safety around the tank. It also protects against the infiltration of surface water and debris.
    • Effortless Installation: Designed with user-friendliness in mind, the Tuf-Tite Septic Tank Riser Kit can be easily installed, even by those with limited DIY experience. It streamlines the process, saving you time and effort.


    *Above is a picture drawing of the dimensions of the base for the kits*

    *Concrete lids are to be removed after the installation of your new riser kit*

  • Riser Inner Diameter 20.2 inch
    Riser Outer Diameter 21.6 inch
    Adapter Ring Inner Diameter 20.6 inch
    Adapter Ring Outer Diameter 26 inch
    Riser Material HDPE Thermoplastic Polymer

    • 1 - 20" Heavy Duty Tuf Tite Septic Tank Flat Or Domed Lid
    • 1-  20" x 12" Septic Tank Riser
    • 1-  20" x 6" Septic Tank Riser
    • 1 - 20" Tuf Tite Septic Tank Adapter Ring
    • 2 Tubes Riser Tar Sealant

    Questions & Answers

    Have a Question?

    Ask a Question

    • I need to have the lid flat and just below grade stonger would be helpful need to ride over it with tractor

      This is not the lid capable of that none of the plastic lids will do that safely.