This is mounted on top of the tank with butyl sealant and concrete screws. You may mount a riser, riser safety pan or lid on top.
TUF-TITE® Tank Adapter Ring, 20 in Dia, HDPE, Suitable For Use With: 2012-RIS and 20-RIS Risers
| Diameter | : | 20 in |
| Material | : | HDPE |
| Suitable For Use With | : | 2012-RIS and 20-RIS Risers |