The 1pc 10″x2.5″ 5 Micron CTO Carbon Block Water Filter Cartridge is a durable and long-lasting whole house filter suitable for both commercial and household use. With a filtration method of carbon/charcoal, this filter effectively removes residual chlorine at a rate of over 98% and is capable of filtering up to 15,000 gallons of water. Made from 100% carbon (coconut shell) and certified BPA-free and NSF 42, this filter is designed to last and provide clean, refreshing water for your household. Compatible with various brands and models, this water filter cartridge is a reliable choice for maintaining clean and safe drinking water.