How it Works
"Onsite flexibility for installation can't be overstated."
The XL ‘cut to suit’ Extension Riser is supplied with an additional frame interfacing directly with the tank. The original cover is removed for installation and relocated to the top of the extension when ready to backfill.
Extendable to maximum of 72" (top face of tank to grade) the air and water tight XL Extension Riser provide a fast and easy means to achieve a perfect finish at grade/floor level.