The RP-DSR540060-25A threshold gasket is specifically designed to replace part #25 of DSR54 models, part #22 of DSR58 models and part #6 of DSR552 models. Positioned at the bottom of the shower door, it prevents water from leaking out, keeping your bathroom clean and dry. Made from flexible, long-lasting material, this gasket maintains its sealing efficiency even after repeated opening and closing. Its precise design ensures perfect compatibility with the specified models and allows for quick, easy installation without special tools. Ideal for maintenance or renovation, this threshold gasket extends the life of your shower enclosure while preserving its original waterproof performance.