EPDM small o rings ShoreA50,60,70,80,90 black,white,red,green,yellow, ... NSF,FDA,WRAS,TZW,W270,UL Lead time15days ItemEPDM small o ringsDescriptionMaterial: siliconeShoreA50,60,70,80,90black,white,red,green,yellow ... . Partial meet PAHS,NP requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are available.Material usage is based on the ...