Check the listing for details. 1/2" COMBO AIR PRESSURE REGULATOR WATER TRAP PARTICULATE FILTER FOR COMPRESSOR. Condition: New. Listed at 49.06 USD. HIGH QUALITY PIGGY BACK / INTEGRAL STYLE FILTER REGULATOR COMBINATIONPUSH PULL ADJUSTMENT KNOB THAT SHOWS PRESSURE INCREASE AND DECREASE MARKED ON TOP OF THE KNOB.SIMPLY LIFT KNOB TO ADJUST PRESSURE RANGE AND PUSH DOWN TO LOCK INTO PLACE. 105 CFM FLOW RATE REGULATOR WILL ADJUST 7 PSI MINIMUM THROUGH 150 PSI MAXIMUM 215 PSI MAXIMUM INPUT PRESSURE 1/2" FEMALE NPT INLET X 1/2" FEMALE NPT OUTLET. PLEASE NOTE IF DETERMINING YOUR NPT THREAD SIZE WITH A TAPE MEASURE, RULER OR CALIPER. 1/2" NPT MEASURES 0.850" OUTSIDE THREAD DIAMETER IN INCHES. 5oz POLYCARBONATE BOWL WITH METAL BOWL GUARD. THIS UNIT INCLUDES A SEMI AUTOMATIC DRAIN. DRAIN IS DESIGNED TO HOLD PRESSURE ONCE 15 PSI OR GREATER IS APPLIED TO THE BOWL. ONCE THE PRESSURE DROPS BELOW 15PSI, THE UNIT WILL AUTOMATICALLY DRAIN THE CONTENTS SIMILAR TO AN OVERNIGHT DRAIN. WALL MOUNTING BRACKET AND BACK MOUNT PRESSURE GAUGE INCLUDED WITH EACH UNIT. OPERATION INSTRUCTIONS ALSO INCLUDED. 5 MICRON ELEMENT FOR PARTICULATE FILTER REMOVES 95% OF WATER MOISTURE FROM COMPRESSED AIR LINES. FOR REPLACEMENT FILTER ELEMENTS, COPY AND PASTE THIS EBAY ITEM CODE TO YOUR EBAY SEARCH BAR. 192018666635PLEASE NOTE: THE BEST STAGE 1 MOISTURE PREVENTION IS YOUR COMPRESSED AIR LINES THEMSELVES. ALWAYS FORCE COMPRESSED AIR TO CLIMB VERTICALLY, WHILE WATER AND MOISTURE ARE FORCED DOWNWARDS BY GRAVITY. THIS WILL EXTEND THE LIFE OF YOUR FILTRATION ELEMENTS AND YOUR AIR TOOLS. PLEASE SEE A FEW ATTACHED PICS OF POPULAR COMPRESSED AIR PIPING TECHNIQUES AND INSTALLS. FOR A TAMPER FREE SAFETY FEATURE, SIMPLY REMOVE THE REGULATOR KNOB ONCE YOU HAVE PRESET TO YOUR DESIRED CUT-IN AND CUT-OUT PRESSURE. THE REGULATOR KNOB CAN ACT LIKE A KEY WHEN YOU NEED TO ADJUST THE PRESSURE AGAIN. THIS PREVENTS PEOPLE FROM TAMPERING WITH THE SET PRESSURE.