1.Solar Water Heater Rubber Parts 2.diameter 58mm 3.100% silicone material 4.nontoxic,odorless 5.RoHS;ISO9001:2008 Products feature1,made of 100% silicone material 2,nontoxic, odorless, non-corrosive ,antioxidative3,Each product have good quality and a long service life. Product attributesNamesilica gel circleFull specifications20,25,32,47,58,70mmProduct size58mmFlanging Height4.2mmPackage size59 ...