Stable output and repeatability - provides constant control under variable flow rates and supply pressures , Corrosion-resistant construction - aluminum die-castings are finished with Irridite and baked epoxy paint , Depth filter unit comes equipped with high capacity 3 micron filter housed in drip-well , Self-relieving , Low droop at high flow levels - aspirator design helps maintain set pressure a higher flow levels , Tight shut-off - a soft, rubberized valves provides a positive shut-off and compensates for dirt and other foreign matter