This is a Black O-Ring replacement for Posi-Flo II Cartridge Filters PTM Series, Posi-Flo II Cartridge Filters PTM 135 Series, and PTM 135 Separation Tanks. This o-ring is identical to: O-239, Hayward SPX4000T, Jacuzzi 13022009R, 47044805R, Sta-Rite WC93, Sta-Rite/Swimquip 355051365.
This o-ring has been manufactured in accordance with OEM specifications and is designed to meet or exceed specifications.
