Pentair PLM Filter System Spring Check Valve || 27001-0130s Hayward AquaTrol Salt Chlorinator Parts and Accessories inspect the O‑ring and collar

inspect the O‑ring and collar threads for wear

Round drain design supports steady water flow

💡 Pro Tip: If some buttons are still unresponsive after replacement

Its almond finish matches existing filter components

Pentair PLM Filter System Spring Check Valve || 27001-0130s Hayward AquaTrol Salt Chlorinator Parts and Accessories inspect the O‑ring and collarPentair PLM Filter System Spring Check Valve 27001 0130s This spring check valve is designed to use with Pentair Sta Rite PLM and System 2 modular media pool and spa cartridge filter models PLM100, PLM125, PLM150, PLM175, PLM200, PLM300 and also compatible with Pentair Sta Rite PLD and System 2 modular pool and spa D. E. filter models PLD50 DE, PLD70 DE. Measures 1 inch length by 1 inch height by 1 inch width.