Our 12"x6" riser can be stacked on top of each other. There are screw holes on the inside of the riser to attach it to a distribution box, catch basin, or another riser.
Includes:
Four screws (#10x1-1/2” stainless steel square drive)
The Polylok 12" riser family offers the greatest flexibility in reaching your desired stacking height. Whether its 3 inches or 60 inches, Polylok has the products you need. All Polylok risers are made of high density polyethylene and are manufactured in the United States. Polylok risers are designed to be watertight and airtight. Polylok risers are made with the highest UV available to prevent fading. The structural ribs inside the riser and tear off ring on the outside.