Sterling Seal & Supply EPDM NSF 70D O-rings are resistant to ketones, hot and cold water, steam, alkalis, polar solvents, ozone, sunlight, alcohols, glycol engine coolant and Skydrol
Faucets and plumbing products intended for contact with drinking water should be tested and certified to NSF/ANSI Standard 61
NSF certification is your key to making sure that the products you use meet strict standards for public health protection
Rubber compounds submitted to NSF undergo rigorous testing to determine whether any contaminants leach or migrate from the material when in long term contact with drinking water