water tube black o ring ShoreA50,60,70,80,90 black,white,red,green,yellow, ... ,FDA,WRAS,TZW,W270,UL Lead time15days Itemwater tube black o ringDescriptionMaterial:NBR,EPDM,FKM,ACM,IIR,SiliconShoreA50,60,70,80 ... meet PAHS,NP requirement.NBR,EPDM,FKM,ACM,IIR,Silicon rubber etc. are available.Material usage is based on the final ...