20" x 2" Septic Tank Riser Kit

The 20" x 2" septic tank riser kit provides a small height adjustment to your septic system access point, helping fine-tune accessibility while keeping a low-profile appearance. This configuration is ideal for shallow systems or for adding to an existing riser setup to achieve the exact height you need.

This kit includes a 20" diameter riser, a secure cover, and the necessary installation hardware. Each component is made from heavy-duty, UV-resistant polyethylene, built to withstand long-term outdoor exposure, moisture, and soil contact without rusting or corroding. The fitted cover helps prevent water intrusion and limits unauthorized access.

Key Features:

• 20" diameter riser with 2" height for septic tank access adjustments

• Heavy-duty, corrosion-resistant polyethylene construction

• Tight-fitting cover for added safety and protection

• Compatible with most standard septic tank openings (verify measurements before purchase)

• Includes installation hardware

Installation Notes:
This riser kit can be used for new or existing septic systems. Always confirm your tank opening size and required riser height before ordering. Professional installation is recommended to ensure a proper seal, compliance with local codes, and long-term reliability.

Routine inspection of the riser and cover will help maintain optimal system performance and prevent water intrusion.

Note: Dimensions shown are for the kit base. This model includes a 3" safety pan with an inner diameter of 20" due to a slight bevel. Dome lids add approximately 1" to overall height. Upgrades to flat lids are available for an additional cost. Remove any existing concrete lid before installation. Please confirm diameter and height before ordering. Return shipping costs for incorrectly ordered sizes are the customer’s responsibility.