Pentair WC9-3 O-Ring Replacement for Select Sta-Rite Pool/ Spa Cartridge Filters

Compatible: Compatible with Sta-Rite Posi-Flo II Pool and Spa Cartridge Filters Model PTM50, PTM70, PTM100, and Compatible with PTM135 Series. Also fits the Sta-Rite pool and spa filter separation tank assembly

Hassle-Free Installation: This O-Ring Replacement is also very easy to install, ensures a secure watertight seal, and prevents water and air from leaking out of the filter.

Features:
● Flexible, Super Durable
● O-ring Replacement
● Stable and Reliable Material
● Compatible with Pool and Spa Cartridge Filters
● Also Fits Sta-rite Pool and Spa Filter
Specification:
● Category: Filters
● Part Number: WC9-3
● Type: O-ring
● Color: Black