water pipe oring sealing NBR ShoreA50,60,70,80,90 black, ... white,red,green,yellow,blue NSF,FDA,WRAS,TZW,W270,UL Lead time15days Itemwater pipe ... oring for sealingDescriptionMaterial:NBR,EPDM,FKM,ACM,IIR,SiliconShoreA50,60,70 ... and PFOS commands. Partial meet PAHS,NP requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are ...