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