This highly reliable stainless steel bypass valve fits the Fleck 5600, 5600SXT, 2510, 5800, 6600, 6700, 9100 and the 3/4″ 9000.
The valve has 1″ female pipe threads to connect your plumbing.
This Fleck Part # is FL60041SS (the newest stainless steel version)which is a direct replacement for the old brass part # 60041.