The Speakman Hotel Pure Replacement Shower Filter is designed to keep your water clean and healthy for up to 6 months or every 10,000 gallons used. Compatible with our Hotel Pure Filtered Shower Head, our shower filters feature a unique media blend that is proven to remove up to 99% of the chlorine you're your shower water. To replace your shower filter, simply twist the lock mechanism on your Hotel Pure Shower Head, remove the existing filter, replace it with your new filter, and lock the mechanism back into place.