Get a secure, durable connection with the ProPress sealing element EPDM. Ethylene-propylene-diene monomer rubber (EPDM) is a synthetic, cured all-purpose elastomer recognized for its excellent resistance to chemicals and other harsh environmental conditions. With a broad operating temperature range, the EPDM sealing element is suitable to any type of water application, including hot water, as well as compressed air and ketones. Approved to the most codes and standards of any other press fitting system (IPC, UPC and NSF included) and with more than 400 different fitting configurations to suit virtually any type of plumbing or HVAC job, Viega ProPress is the top choice of professionals around the globe.