Our 12" Polylok Riser Adapter Rings accept any 12" Polylok risers. This adapter ring is ideal for retrofitting existing septic tanks, and can be secured with ease. Our adapter rings is made of virgin high density polyethylene.
- Adapter ring accepts 12" Polylok risers
- Covers up to 12" square opening
- Perfect for retrofitting onto existing tanks
- Save time and money with easy installation