Full union design allows serviceability and full access to all internal components. The micron strainer inserts are made from an outer two piece Polypropylene strainer insert housing which supports structure to the interchangeable stainless steel screens. Screen inserts made from grade 316 stainless steel. 3/8" - 2 1/2" 232 psi; 3" 145 psi. PVC body with EPDM seals. Socket end connectors. Additional materials and sizes available; contact us for quote.