Polylok 20"x3" Riser/Riser Pan (PN: 3009-LPRP)

Description

• Allows tank, riser, and tank lid to be poured together
• Accepts additional 20'' risers to bring to grade for servicing
• Patented ring to guarantee watertight and airtight seal between concrete tank and riser
• Can be used as a 3" riser
• Makes riser stack stronger

Our 20"x3" riser/riser pan 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.