YINETTECH 10 PCs Dielectric Union Washers 38.10 x 53.98 x 2.4 mm Rubber for Water Heater Tank HVAC Gas Oil Water Systems

["- Helps prevent galvanic corrosion between dissimilar metals while sealing union joints to reduce leaks","- Precision fit sized at 38.10 mm ID 53.98 mm OD 7.94 mm width and 2.4 mm thickness","- Durable rubber dielectric material delivers reliable insulation sealing and long service life","- Suited for water heaters tanks HVAC gas and oil lines and water softener piping systems","- Ideal for plumbing and industrial pipe maintenance repair and installation"]