Oring 1.9x18.2 1.9mm x 18.2 mm Seal Sil Silikon Tebal 1mm Diameter Dalam 18.2mm Tahan Panas | Hivo Heat & Low Temperature Ozone Weather Resistance Silicone Rubber Seals Sealing Ring O-Ring | 22x1.9 22 x 1.9 OD : 22mm ID : 18.2mm Thick : 1.9 mm | 22*1.9