Danco 1-3/4 in. D Rubber Washer 10 pk, Pack of 10

Use The Danco dielectric union washer wherever dissimilar metals occcur in piping and plumbing systems or where an electrically insulated connection is required. Water storage tanks, gas piping, air conditioning, water conditioners, oil piping, plating tanks, water pumps and steam lines are common applications where the union washer can be used. It is constructed from rubber to provide strength and durability.