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•This outlet washer hold the water in the cistern until the flush valve is activated for flushing
•Diaphragm seal is a flexible membrane that seals and isolates an enclosure. It allow pressure effects to cross the barrier but not the material being contained
Siamp Optima Outlet Seals are a dual flush valve diaphragm seal replacement, suitable for Optima 49 and 50 dual flush valves. They are used to control fluid flow by regulating the area with which media can enter and exit the valve, effectively changing its speed and velocity.
