COMPATIBLE: For use with Delta Clarifi Shower Filter Attachment (5SF100 or 7SF100) SUPERIOR FILTRATION: Unique filter design reduces chlorine and sediment 3RD-PARTY TESTED: Proven to reduce impurities that may cause dry skin and hair QUICK FILTER CHANGES: Easy tool free filter replacement. Takes less than 2 minutes FILTER LIFE: Filter replacement needed around every 6 months (average 17.2 gallon shower per 10,000 gallon filter) LIMITED WARRANTY: You can install with confidence, knowing the Delta Clarifi Shower Filters are backed by our 30-day limited warranty and highly-trained live customer support