1 set of replacement filters with following. 4 x 20 Inch Big Blue 10 Micron PP Sediment Filter. Three-layers structure cartridge, High contaminant holding capacity. 100% PP Polypropylene for compatibility with a wide range of process fluids. 10 Micron, Micro-DenierT melt-blown filtration fiber, high removal ratings. Formed by thermal bond without use of any binders and adhesives. Maximum Operating Pressure: 125 PSI. Dimensions: 20 inch x 4.5 inch. Maximum Flow Capacity: 1 – 30 GPM. Pressure drop will be determined based on feed water pressure, filter cartridge selection and port sizes, fluid viscosity, filter life and conditions. Total 4 filters, each individually wrapped. This item is in the category “Home & Garden\Kitchen, Dining & Bar\Small Kitchen Appliances\Water Purification\Water Filters”. The seller is “reverse.osmosis” and is located in this country: CA. This item can be shipped worldwide.