Our KWSS20-1.5FNPT-250 mesh system is the Rusco 2 Inch female slip fit unit but with a 1.5 Inch Female Threaded Adapter installed. The intent of this modification is convenience. Often threaded connections are used for installation thus this system removes the expense and effort of procuring and installing the adapters. This system is ideal for filtering out course and moderately fine sediment without the need for cartridge replacement. A high impact, molded polyester screen filters the sediment. Periodically the sediment will need to be removed. This can be done by simply opening the purge valve allowing the sediment to be flushed out via centrifugal action. The polycarbonate transparent sump permits monitoring of trapped sediment. The 1.5 inch female threaded PVC inlet / outlet head provides a 100 GPM flow rate. This filter housing is manufactured from the highest quality NSF listed, FDA grade materials. Approximate dimensions 5.75 inch width x 17 inch length. The 250 mesh screen is ideal for residential and commercial filtration applications. Over time it maybe necessary or desired to change the filter screen. Please enter model KW2-RE-250M into Amazon search box for the replacement screen. The exact measurement is 1 7/8 inch diameter x 9 15/16 inch length. Please note the higher the mesh size the smaller the particle entrapment capability.