SHURFLO TWIST-ON FILTERSTransparent in-line filters with 50 mesh stainless steel screen. These filters are designed to screw directly onto the inlet side of 1/2" threaded pressure pumps. They can eliminate unnecessary pump repairs by keeping debris and particles out of the pump. Easy screw-apart disassembly for cleaning. 2 models - both have 1/2" female thread to screw onto pump inlet - and either 1/2" male thread or 12mm hose barb inlet.