20" x 17" Septic Tank Riser Kit

The 20" x 17" septic tank riser kit is designed to raise your septic system access point to ground level, making inspections, pumping, and servicing more convenient. By reducing or eliminating the need for digging, this riser kit helps simplify maintenance while minimizing disruption to your yard.

This kit includes a 20" diameter riser, a secure cover, and the necessary hardware for installation. The riser components are made from heavy-duty, UV-resistant polyethylene, engineered to withstand long-term outdoor exposure, moisture, and soil contact. The tight-fitting cover helps prevent unauthorized access and limits surface water intrusion.

Key Features:

• 20" diameter riser with 17" height for septic tank access
• Durable, corrosion-resistant polyethylene construction
• Tight-fitting cover for added protection
• Compatible with most standard septic tank openings (verify dimensions before purchase)
• Includes installation hardware

Installation Notes:

This riser kit can be installed on both new and existing septic systems. For best results, confirm tank opening measurements to ensure compatibility. Professional installation is recommended to ensure a proper seal, code compliance, and long-term reliability.

Regular inspections of the riser and cover will help maintain performance and prevent water intrusion or damage.

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.