Important Info
Please use the riser sizer below for any sizing questions you may have. This calculator should answer any and all questions.The 16" x 8" septic tank riser kit raises your septic system access point slightly above ground level, making inspections, pumping, and maintenance more convenient while keeping a low-profile appearance. This height is ideal for shallow systems or for making minor adjustments to an existing riser setup.
This kit includes a 16" diameter riser, a secure cover, and all 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 protect against water intrusion and limits unauthorized access.
Key Features:
16" diameter riser with 8" height for septic tank access
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 is suitable for both new and existing septic systems. Confirm your tank opening size and riser height requirements before ordering. Professional installation is recommended to ensure a proper seal, compliance with local codes, and long-term reliability.
Routine inspections of the riser and cover will help maintain system integrity 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.
Recieved the 16 x 8 riser system. There was a tube of caulk. Is there instructions on recommended install?
Yes, that is the sealant and we have a video on Youtube that can help out with any installing instructions.
Riser System Installation
Hello, We are looking for a complete riser kit for our septic tank, The tank is located approximately 4’ underground, Thank you
Hi, we recommend this guide for risers, as you'll need to make sure you measure the small opening correctly to find out what diameter you need. After that you'll probably have to do some math since your septic tank is so deep: Our highest riser kit is 38inches, so you'll need to add another ring or two onto it in order to reach the surface.
Can you mount this to a concrete riser ?
Yes, it will mount to a concrete riser already in place. You need to to make sure it will fit on top of the concrete riser so measure the width of the concret I.D and O.D first.
Can this product be mounted to an already 24" dia. Concrete riser ? Or does it need directly on the septic tank?
you would nee the 20x8 riser system to mount to a 24" the 16" is too small.
