20" x 14" Septic Tank Riser Kit
Important Info
Please use the riser sizer below for any sizing questions you may have. This calculator should answer any and all questions.
Important Info
Please use the riser sizer below for any sizing questions you may have. This calculator should answer any and all questions.The 20" x 14" septic tank riser kit is designed to raise your septic system access point to ground level, making inspections, pumping, and servicing more convenient. This mid-height riser configuration is ideal for installations that require moderate elevation for improved accessibility.
The kit includes a 20" diameter riser, a secure cover, and all necessary installation hardware. Each component is made from heavy-duty, UV-resistant polyethylene, designed to withstand outdoor conditions, moisture, and soil contact without corroding. The fitted cover helps prevent water intrusion and restricts unauthorized access.
Key Features:
Installation Notes:
This riser kit is suitable for both new and existing septic systems. Always confirm your tank opening size and the riser height needed 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 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.
i need a 24x16 kit
We have a 24 x 17" kit here (just an inch taller). Typically having the lid a bit higher than ground-level is preferable than having it underneath ground level. We have some really great illustrations here in our riser-sizing guide
How many risers included in kit
This particular kit includes a single 12-inch tall riser. It also includes the adapter ring for connection to your concrete tank, as well as a lid for the top of the riser ring. The adapter ring and lid add a bit of height, totaling 14inches.