Pleatco Filter Cartridge 137 sq ft | Sta-Rite Posi-Flo II, PTM 135, 35 TX, 35 TXR | PSR137 Ladders & Slides Free & Combined Free chlorine

Free & Combined Free chlorine is the active form of chlorine for disinfecting water

Taylor formulates its reagents to remain effective for at least one year

Verify your existing filter uses this configuration before ordering

no partial)

thermometer and 2-way chemical test kit

Pleatco Filter Cartridge 137 sq ft | Sta-Rite Posi-Flo II, PTM 135, 35 TX, 35 TXR | PSR137 Ladders & Slides Free & Combined Free chlorineThe Pleatco Advanced PSR137 is a 137 sq ft replacement filter cartridge engineered for precision fit in Sta Rite Posi Flo II cartridge pool filters. Built with Pleatco Point Bonded Pool Filtration Fabric, it delivers consistent pore structure throughout the cartridge's service life resisting channeling and maintaining filtration performance from the first cycle to the last. At 31 1 4" long and 8 11 16" in diameter, the PSR137 meets the exact