A single handle uses the same 3 holes as the double handle
Change the faucet, either one will mount on the sink.
No conversion, it would need to be replaced with a single handle faucet.
Moen part #1920 and a brand new Moen single handle faucet
The main types of shower faucet available in the market are single-handle, double-handle, thermostatic, and digital.
To replace a faucet cartridge in a single-handle faucet, first turn off the water supply. Remove the handle and trim cap, then unscrew the cartridge retaining nut. Pull out the old cartridge and insert the new one in its place. Reassemble the faucet and turn the water supply back on.
There are three main types of shower faucet handles available for purchase: single-handle, double-handle, and thermostatic. Single-handle faucets have one lever for controlling both water temperature and flow. Double-handle faucets have separate handles for hot and cold water. Thermostatic faucets have a built-in temperature control to maintain a consistent water temperature.
On the single lever handle just unscrew it.
To replace a single handle kitchen faucet, first turn off the water supply. Then, disconnect the old faucet and remove it. Install the new faucet by following the manufacturer's instructions. Finally, turn the water supply back on and test the new faucet for leaks.
To fix a leaky bathroom faucet with a single handle, you can start by turning off the water supply to the faucet. Then, remove the handle and the cartridge inside the faucet. Check for any worn out or damaged parts, such as the O-rings or seals, and replace them if necessary. Reassemble the faucet and turn the water supply back on to test for leaks.
The different types of shower faucet handles available in the market include single-handle, double-handle, and thermostatic handles. Single-handle faucets control both water temperature and flow with one lever. Double-handle faucets have separate handles for hot and cold water. Thermostatic handles allow for precise temperature control and can maintain a consistent water temperature.
To fix a leaky shower faucet with a single handle, you can start by turning off the water supply to the shower. Then, remove the handle and the cartridge inside the faucet. Check for any damaged parts and replace them if necessary. Reassemble the faucet and turn the water supply back on to test for leaks.
the new one has a aeriator that's working right