Rain-X Shower Door Extreme Cleaner is a powerful, fast-acting formula designed to remove stubborn hard water stains, soap scum, and mineral deposits from glass shower doors and bathroom surfaces. Its advanced cleaning action leaves a streak-free, crystal-clear finish, restoring the original shine of your glass. Easy to use with a simple spray-and-wipe application, this 12 oz bottle is ideal for regular maintenance and keeping shower doors clean and sparkling. Safe for glass surfaces and effective against everyday buildup.