Purchase this 10" Replacement Pre-Filters 3-Pack designed for Aquasana's Rhino® Whole House Water Filters to maintain your system so you can continue enjoying healthy, great-tasting water. These Pre-Filters capture dirt and debris that can clog your system and affect the taste of your water, so don't wait to replace them. Each filter lasts up to 2 months, so this 3-pack will cover you for up to half a year.Three 10" Pre-Filter Replacements for use with Aquasana Rhino® Whole House Water Filters, which prevent dirt and debris from clogging the main filter unit.