FITVALF DOUBLE SOCKET SLEEVE'S EPDM GASKET : EPDM rubber is a type of synthetic rubber used in many applications. The main ingredients of EPDM rubber are ethylene, propylene and diene monomen. These three ones are reacting to form EPDM. EPDM is highly resistant to oxidation, ozone and atmospheric conditions. They are gaskets that is used in the joints of PVC pipes. These seals prevent water leakage. DOUBLE SOCKET SLEEVE EPDM GASKET is offered between 50MM - 225MM in Fitvalf product range. You can find the dimensions in our table. You can safely use EPDM SLIDING SLEEVE GASKET in places where you use FITVALF UPVC DOUBLE SOCKET SLEEVE AND UPVC PIPE.