The WSP-500 spin down sediment filter is ideal for filtering out course sediment larger than 500 micron. The stainless steel screen makes the flushing and cleaning process very simple, allowing flushing of the contaminants through the bottom of the filter when the cartridge begins to get clogged. This allows the stainless steel filter cartridge to be used over and over again without needing to be replaced. The 1 inch outlet MNPT fitting provides a maximum 20 gpm flow rate, and the WSP-500 also features 3/4 inch NPT threads on the inlet and outlet. Specifications: Mesh pore rating: 500 micron Dry weight: 1 Lb Dimensions: 3. 5" width x 9" height Suitable temperature range: 40 - 100 ^oSuitable pressure range: 20 - 90 psi