The PCF1-10MB 10" Deionization Specialty Filter Cartridge by Pentek is designed for whole house filtration systems. With a filter life of 6 months, this cartridge utilizes ion exchange resin for effective deionization filtration. The 10 x 2-1/2 size and 5 micron rating make it compatible with various models and provide clean water for your household needs. Made in Mexico, this high-quality filter cartridge is a reliable choice for maintaining your plumbing system's efficiency and water purity.