Whether they're made of bronze or another material, shower faucet covers serve both a decorative and functional purpose. In terms of practical function, the shower faucet cover fills the space between the faucet head or handle and the shower wall. Caulking around the cover prevents water from reaching layers of the shower wall that are below the waterproof liner, which would be exposed if no cover is in place.
Buying replacement bronze shower faucet covers usually involves contacting the manufacturer or retailer. Each type of shower faucet has its own dimensions and layout, which means that covers are not interchangeable. Even the bronze finish from another manufacturer may not offer an appropriate match in terms of color or shape. In some cases, it may not be possible to buy the bronze faucet cover alone. Instead, the cover may only come with the faucet or handle it surrounds.
Buying a matching bronze replacement cover from the manufacturer usually is the best way to give your bathroom a seamless look, especially if your other fixtures feature the same bronze finish. However, if you can't find a bronze replacement cover, you may consider another type of cover. Ceramic covers that match the color of your shower walls help minimize the visual shortcomings of a non-matching cover. Brushed stainless steel will give a two-tone silver and brown look with the existing bronze faucet, but with the same brushed finish.
Another option for replacing a bronze shower faucet cover is to refinish another type of faucet cover that has the right dimensions. To achieve a bronze finish, use a metallic spray paint over a layer of primer on the faucet cover. Apply an oil rub, which gives the bronze its aged look. To help the cover withstand the constant moisture of the shower, apply a clear sealant before installing it on the wall.