Hayward EC40/50 Diaphragm Gasket | ECX1003 3-way Valve clean the tank thoroughly and

clean the tank thoroughly and inspect the sealing surfaces

This reagent is suitable for commercial and residential pool service applications where accurate chlorine measurement is essential—such as during startup

Easy to remove and clean for routine maintenance and inspection

Rinse the cartridge monthly to maintain performance

Formulated with 100% ascorbic acid

Hayward EC40/50 Diaphragm Gasket | ECX1003 3-way Valve clean the tank thoroughly andHayward ECX1003 Diaphragm Gasket Part Number: ECX1003 Description A diaphragm gasket designed for use in Hayward Perflex D. E. filters (models EC40, EC50A and similar). This gasket helps seal the tube sheet to the filter tank body, preventing D. E. bypass and ensuring proper system performance. Compatibility & Fitment Fits Hayward Perflex EC40 and EC50A extended cycle D. E. filter models. Ideal when the filter is leaking D. E. powder into the pump