This Five Stage replacement water filter kit is compatible with your Five Stage RO-TFM-5SV, WP-5, and WP5-50 Reverse Osmosis Systems. This kit includes: One - Five Micron Sediment Pre-Filter (WP104017) that traps sediment and other particulate matter like dirt, silt and rust which affect the taste and appearance of your water. Two - Five Micron Carbon Block Pre-Filters (WP101009) which helps ensure that chlorine and other materials that cause bad taste and odor are greatly reduced. One - 10 inch GAC Final Filter (WP560010) which is used after the storage tank and functions as a final polishing filter. One - Housing Wrench (WP164002) to assist with opening of the filter housings. If it is time to change your five stage pre-filters including the inline, this kit is perfect for your needs.