water tube black o ring ShoreA50,60,70,80,90 black,white,red,green,yellow,blue NSF,FDA,WRAS,TZW, ... W270,UL Lead time15days Itemwater tube black o ringDescriptionMaterial ... :NBR,EPDM,FKM,ACM,IIR,SiliconShoreA50,60,70,80,90black,white,red,green ...