1 set of replacement filters with following : 25 x 1 Micron Polypropylene Sediment Filter Three-layers structure cartridge, High contaminant holding capacity. 100% PP Polypropylene for compatibility with a wide range of process fluids. 1 Micron , Micro-Denier™ melt-blown filtration fiber, high removal ratings. Formed by thermal bond without use of any binders and adhesives. Maximum Operating Pressure: 125 PSI Operating Temperature Range: 40-100°F Dimensions: 20 inch x 2.5 inch Maximum Flow Capacity: 1 – 20* GPM This Filter pack available with different pack with 5 microns 1 pack 192717297081 2 pack 202496174393 4 pack 202496174125 6 pack 192717375517 9 pack 323517395087 10 pack 323540411804 12 pack 202496834486 20 pack 323541488717