Pentair PLM Filter System Spring Check Valve || 27001-0130s Hayward AquaTrol Salt Chlorinator Parts and Accessories connect at the skimmer or

connect at the skimmer or dedicated vacuum line

Round drain design supports steady water flow

O‑ring and washers—so you don’t need to replace the full valve housing

Initial Treatment: Add 2 oz per 300 gallons of spa water

Pentair PLM Filter System Spring Check Valve || 27001-0130s Hayward AquaTrol Salt Chlorinator Parts and Accessories connect at the skimmer orPentair 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.