66084-1 – Air Line Connection Kit (Optional Accessory)Includes Piggyback Filter / Regulator, pipe nipple & 5′ section of hose. Filter-regulator, or “piggybacks,” combine the functions of both a filter and regulator.

Air Line Connection Kit (Optional Accessory)Includes Piggyback Filter / Regulator, pipe nipple & 5′ section of hose. Filter-regulator, or “piggybacks,” combine the functions of both a filter and regulator. – Item: 6661U4-4EB-C – Air Section