Diaphragm, single stage Voit or US Divers YELLOW, GRAY, BLACK or BLUE

This silicone diaphragm is perhaps the last you will ever have to buy. Silicone will out last any other rubber products out there. I do not need to tell you Voit lovers what OEM gray diaphragms are like today. These work great in Voit Polaris, 50 Fathom, Lung, MIstral, and any other single stage US Divers and Voit. You get to choose while supplies last one of four colours. You are buying one diaphragm.