8 inch offset tub faucet. This faucet is made of bright chrome-looking plastic and will replace similar tub faucets with an offset shower connection.
To determine if your faucet is 8 inches, measure from the middle of the left knob to the middle of the right knob. If the measurement is 8 inches, you have an 8-inch faucet. The next common size is 4 inches.
Taking a look at the back of your faucet (below), you will see three nipples. If the middle nipple is slightly lower than the other two nipples, you have an offset faucet. If your three nipples are all in line, then you need a standard 8″ tub faucet. If your tub spout is separate from the handles, then you need an 8″ brass tub faucet.
If the three nipples are in a straight line as shown in the picture below, then you need a regular tub faucet.
Looking at the faucet from the back, the left nipple is the cold water line, the middle nipple is the shower connection, the right nipple is the hot water line.
To remove your old faucet, you will have to access the wall behind the faucet. Shut off the water supply. The waterlines are simply screwed onto the faucet. Unscrew the ends, then unscrew the nuts from the left and right nipple. The faucet should pull right out.
To install the faucet, apply a bead of plumbers putty around the back edge of the faucet. Insert the faucet through the three holes in the tub surround. Screw on and tighten the nuts found on the left and right nipple. Attach the hot, cold and shower lines. Snug but don’t overtighten. Turn water on and check for leaks. If a leak exists, you may need to then replace the rubber washers in the end of the waterlines, or replace the end.