Write an article based on this "Buy a new stem and handle for your tub. Screw the stem onto the faucet pipe. Slide your new handle over the stem and screw it in place."

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Bring your old stems and handles with you when you look for a new faucet. Make sure to buy stems that are exactly the same as your old ones so they fit onto your pipes easily. Then select the handle that matches the rest of your bathroom. You can buy stems and handles in the plumbing section of your local home improvement store. Make sure to get handles that work for your system. For example, you can't install a single handle if your old faucet had multiple. Some stores sell kits that come with stems and handles for easy installation. Once you bring the stem home, feed the threaded end into the hold where your old faucet was. Turn the stem clockwise to tighten it by hand and secure it to the pipes. When the stem is hand-tight, then use the socket wrench and your pliers to ensure the connection is sealed. If your tub has multiple handles, then make sure to screw in a new stem for each of them. Once the stem is secured in place, put your new handle over the stem and push it back so it touches the wall. Once the handle is on the stem, use your screwdriver to tighten the screw so it's secured to the stem. Pop the index cover over the screw to finish the handle. Repeat the process for any additional handles you have in your tub. If your handles aren't watertight, then you may need to caulk around them to prevent water from entering your walls.