1X Apex RF-3030 Whole House Water Filtration System Replacement Filter Cartridge Pack of 3 – Contain Sediment, Multi-Stage Heavy Metal Removal Cartridge and Carbon Cartridge – High Filtration Capacity. SUITABLE FOR 3-STAGES WATER FILTRATION – It Contains three types of filter cartridges which can be easily adjusted and fit any 3 stage filtration system without hampering the efficiency of the purification system. HIGH FILTRATION CAPACITY – 20 inches x 4.5 inches filter cartridges give the high capacity of filtration in large volume which is suitable to meet the needs of apartment buildings and large homes with ease. EFFECTIVE FILTRATION – This pack includes the Sediment, Multi-stage Heavy Metal remove cartridge, and Carbon Cartridge which are effective to reduce any kind of harmful particles to taste and odor and gives you healthy water to drink. EASY REPLACEMENT INSTALLATION – These cartridges are of standard size which makes it easy to use for replacement of filtration cartridges and universal fit to any 3-stage water filtration system for the whole house. COMPATIBILITY – This replacement filter set is compatible with all standard filtration systems which have three stages make it a universal fit without worrying about the size fit. (3)Sometimes, we will update the status of your order, please check your message time by time. Anyway, thank you very much, enjoy your shopping!