Home Master ISet-TMUL-MY24 filter change set removes up to 99% of iron, hydrogen sulfide, chloramines, chlorine, herbicides, pesticides, chemicals, heavy metals, pharmaceuticals, microplastics and other contaminants that create foul tastes and odors. The Cold UV LED Sterilizer safely destroys or inactivates 99.99% of microorganisms, viruses, bacteria and fungi. EPA Est. #97952-AZ-1. Backwards compatible with earlier ULTRA models. in THE BOX: 3 filters and 1 LED UV Sterilizer module. 5 mic spun poly sediment depth filter with high holding capacity with 1/4 in. push-in fittings. 5 mic inline Iron KDF85 catalytic carbon filter with 1/4 in. push-in fittings. 5 mic inline coconut shell carbon filter with 3/8 in. push-in fittings. Cold UV LED Sterilizer module with 1/4 in. push-in fittings (power supply not included). Each filter in the set measures 10 in. L x 2 in. D, with quick-connect fittings. Certified to NSF 42. Cartridge lifespan: 3,000 Gal. or 1-year as needed. Fits: Home Master TMULTRA, TMULTRA-ERP, TMULTRA-ERP-L, backwards compatible.