Cartridges vary greatly, even between the same models. Turn off the water to your house and open a hot and cold faucet to release the pressure. Then get an adjustable wrench and turn that big brass nut counterclockwise and remove it. Slowly pull the cartridge out noting the position of any marking to assist you in installing the new one. Go to your home store or plumbing supply store and get an exact replacement cartridge. Install it and you're good to go. If you check behind the chrome trim, there might be some shutoff valves to the shower that you can use instead of turning off the water to the entire house.
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I'm getting ready to redo our master bath and am looking for advice on what to avoid, either by brand or design. This will be a simple install: no body jets or rain heads...just a standard shower head.
I’m trying to replace this old shower faucet. But I cannot identify the type of this old valve. I never see this plastic valve like this in the store so I do not know which one I should get to replace the old one.
Anyone has any ideas about this please share with me. Thanks