A-56-A Black Rubber Diaphragm without Copper Ring For Sloan Regal and Royal Flush Valves
A-156-A does not come with the ring
The rubber diaphragm has a 3-1/4" diameter and is 3/16" thick with a 1-1/6" hole in the center
The bottom of the diaphragm is stamped this side down for easy installation There is a brass weep hole formed into the rubber diaphragm
For all inside parts kits
The chemicals in water break down the rubber diaphragm
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