red rubber valve Material: silicone Hardness:Shore40,50,60,70,80, ... DescriptionMaterial: SiliconeHardness:Shore40,50,60,70,80,90Color: black,white,red,green,yellow,blue,brown,orangeAdvantageAging resistance, high/low temperature resistance ... ,FDA,WRAS,KTW,W270,UL,ACS,ROHSMaterialAll raw material meet European REACH, ROHS and PFOS commands. Partial meet PAHS,NP requirement ...