Admiral S15/S20 Ring Seat Extension Collar valve-type_Butterfly This formula is fast acting

This formula is fast acting and is compatible with all pool types

This back-up ring goes inside the tank and is used on filters manufactured after 3/03

The finger grip package can also be factory radiused to match free-form pools

The 14 Foot Olympian diving board in radiant white with matching white tread is commercially rated for moderate to heavy-duty usage in commercial swimming pools

320 Wood Primer)

Admiral S15/S20 Ring Seat Extension Collar valve-type_Butterfly This formula is fast actingThis is a Pentair 85002300 Round Ring Seat Extension Collar for Admiral S15 S20 Pool and Spa Skimmers. This collar is adjustable up to 3 inches.