If you don't know your fitting size and live on the west coast, take the guessing work out with the Fluidmaster West Coast connector; it fits 97% of western US toilet shut-off valves. This connector accommodates shut-off valves with 3/8 in. compression and 1/2 in. FIP fittings. Fluidmaster connectors are made of a tough polymer core covered with braided stainless steel wire; they exceed every code requirement in the book for durability. They also have a large inside diameter for higher flow capacity.

• Fits 97% of western US toilet shut-off valves
• Exceptional Flexibility for easy installation
• Will not kink or crease in tight spaces
• Heavy-duty brass hex nut is easy to grip and nickel plated for durability