This riser pan provides a built in 59 lb. concrete plug for additional safety. This built in safety plug will act as a secondary layer of protection if the riser cover is unknowingly damaged, removed, or not put back on. It accepts additional 24'' Polylok risers to bring to grade.
Product Features
- Allows tank, riser, and tank lid to be poured together
- Accepts additional 24'' Risers to bring to grade for servicing
- Pan has key-way for positive concrete lid positioning
- Pan is held in perfect alignment on the inner core of mold with four mold fastening nails for fast installation
- Patented ring to guarantee watertight and airtight seal between concrete tank and riser
- Fits anywhere in the Riser stack
- Can be used as a 3" Riser
- 59 lb. plug meets ASTM C-1227 standard specification for precast concrete septic tanks