for GPD RO of Universal 2 Denali Boxes Cartridge H2o Pure Brand Filter H2O 10 inch Distributors Sediment for Replacement Polypropylene 5 Micron Distributors System 60 USRO5 60 QC 38 USA 5 Stage Simple to use and a Simple to use and a fast installation Only maintenance requirement is changing the bulb once a year Efficient and compact 304 polished stainless steel Meets food FILTER: This is a MERV 8 rated 4 pack Air Conditioner Filter : 23" x 30" x 1a" Actual : 23" x 30" x 2 Boxes of Replacement for H2O Distributors USRO5 60 QC 38 USA Polypropylene Sediment Filter Universal 10 inch 5 Micron Cartridge for H2o Distributors 5 Stage RO System 60 GPD Denali Pure Brand