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16" x 11" Septic Tank Riser Kit
$175.00 - $175.00
$175.00
$175.00 - $175.00
$175.00
  7 Reviews

16" x 11" Septic Tank Riser Kit

Tuf-Tite
16" diameter, 11" high septic tank riser kit with cover. Heavy-duty, UV-resistant polyethylene. Includes hardware for above-ground septic access.

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Important Info

Please use the riser sizer below for any sizing questions you may have. This calculator should answer any and all questions.
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Square Opening? Use our Riser-size Calculator!

SKU TUT-RIS-KD16X11
  Support Video
  • Key Features
  • Specs
  • Warranty
    • The 16" x 11" septic tank riser kit raises your septic system access point closer to ground level, making inspections, pumping, and maintenance more convenient. This shorter configuration is ideal for systems that require only a small height increase for easier access.
    • The kit includes a 16" diameter riser, a secure cover, and the hardware needed for installation. Each component is crafted from heavy-duty, UV-resistant polyethylene, designed to withstand outdoor conditions, moisture, and long-term soil contact without corroding. The fitted cover helps protect against water intrusion and limits unauthorized access.
    • Key Features:
    • 16" diameter riser with 11" height for septic tank access
    • Durable, 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 tank opening size and height requirements before ordering. Professional installation is recommended to ensure proper sealing, compliance with local codes, and long-term reliability.
    • Regular inspection of riser components and seals will help maintain optimal system performance.
    • 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.


QUESTIONS & ANSWERS

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  • Will these attach to fiberglass tanks?

    If the fiberglass tank has a flat mounting point, and its dimensions match this adapter ring's dimensions, then yes it should work. Check the drawing on the product listing for the precise dimensions. You will probably want a more permanent way of securing it, such as stainless-steel bolts or such.