... . Details about EPDM rubber watch o ring: Original PropertiesUnitSPECTest MethodsValueShore A hardnessPoints60+/-5ASTM- ... NSF, UL, etc.7. Style: O ring, X ring, D ring, V ring, etc.8. Applications: automobile, electrical appliance, ... water proof. -------------------------------------------EPDM rubber watch o ring----------------------------------------------Our products: EPDM rubber watch o ringWelcome ...