The Thru-Wall Sump Strainer from Buyers Products is designed to stop items from getting back into fluid reservoir and causing damage. The cleanable and reusable strainer can stop items 150 microns or larger at the suction port of your reservoir and keep them from going any farther, without hampering your flow rate. It uses a pleated element of stainless steel wire cloth (100 mesh) and is constructed tough, with cast iron bushings and leak-free bonding epoxy. It fits a standard 2 in. NPTF port and is ideal for larger tanks and applications needing a greater flow rate.