1 set of replacement filters with following : 4 x (10 inch x 4.5 inch) 1 Micron PP 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: 10 inch x 4.5 inch Maximum Flow Capacity: 1-15GPM* Filters are individually wrapped Total 4 filters, each individually wrapped.