The Praher S4 True Union Inline Strainer is available in sizes from 3/8" to 4" with PVC, PP or PVDF bodies and either EPDM or FKM O-rings. The full union design allow serviceability and full access to all internal components. End connections available are solvent cement socket, solvent cement spigot, threaded socket or flange. Screen inserts are made from grade 316 stainless steel with perforations of 1000 micron, 750 micron and 500 micron and polypropylene in 1800 micron.