Parco’s ethylene-propylene and nitrile seals are ideal for applications that require certification to NSF/ANSI Standard 61. Those seals provide excellent resistance to swelling in chloramine-treated drinking water and have excellent resistance to compression set for extended service life. Parco offers O-rings, brine seals, U-cups, and custom molded parts to meet the needs of the water filtration industry in the United States and abroad. When requested, Parco can also offer materials that are WRAS and KTW listed.
Click here to view a complete list of Parco’s NSF 61 listed compounds.