water valve rubber sealing Material: silicone Hardness:Shore40,50,60,70,80, ... Approved:NSF,FDA,WRAS,KTW,W270,UL,ACS,ROHS Itemwater valve rubber sealingDescriptionMaterial: SiliconeHardness:Shore40,50,60,70,80,90Color: black ... outside, 46*34*34 cmNot-standard packing: follow customers' requirement valve rubber sealing approved W270,KTW,WRAS,NSF