The General Pump ZMFIL is a Low Pressure In-line Filter with features including a rigid construction, stainless steel mesh filter, die cast aluminum (anodized) housing and plastic cap, no tools required for cleaning, and ports for bypass hose and gauge. Its port sizes are: Inlet 1/2-14 BSP-F, Outlet 1/2-14 bsp - m, and Accessory (2) 1/4-19 BSP-F. Its filter opening is 40 mesh - 0.15" and its dimensions are 2.25" x 3.25". Materials include Aluminum, Brass, Plastic, and Buna-N.