Shower valve assemblies and cartridges are not universal, so it’s necessary to determine the size and type of shower valve currently installed to find a suitable replacement.

The number of handles your shower valve has can also impact the cost of your shower valve replacement materials. Single-handle shower valves are the most common shower valves in newer homes and ...

: I have an old single-handle shower valve that I want to replace with a modern one. How difficult is this project? April 23, 2009 - 9:00 pm ...

This changes the shower water mixture, allowing much more hot water into it. The simplest solution to this problem is to install a single-handle shower mixing valve with a pressure-balancing feature.

First and foremost, make sure your new single-handle faucet is even compatible with your shower valve. If it's not, you could be looking at a full valve replacement, too.

So if you have a three-hole sink with the outside holes 4 inches apart, you should be able to install a single-handle bathroom faucet. However, a deck plate to cover all the holes is usually needed.