WYNNsky Air Coupler and Plug Kit, 1/4 Inch NPT Air Fittings Industrial Type, 7 Piece Air Compressor Accessories Kit - Amazon.com
USA Made Air Fittings, Air Coupler and Plug Kit, Solid Steel and Brass Quick Connect, Industrial 1/4" NPT Air Tool Fittings (5 Piece Set): Amazon.com: Industrial & Scientific
Milton 2 In ONE 1/4 in. MNPT Universal Safety Exhaust Coupler s-1757 - The Home Depot
Tanya Hardware Coupler and Plug Kit (14 Piece), Industrial Type D, 1/4 – T TANYA HARDWARE
Dixon Air Chief Steel Industrial Quick Connect Coupler 1/2 in. Female NPT x 3/8 in. Body - John M. Ellsworth Co. Inc.
T TANYA HARDWARE Air Hose Fittings And Air Coupler Plug, Air Compressor Quick-Connect MNPT Male Plug Kit (Industrial Type D, 1/4-Inch NPT Male Thread, Solid Brass, 2 Piece) - Amazon.com
Melprisu Quick Connect Air Fittings Automotive Style Air Plug & Coupler Set 14PCS Air Hose Fittings Air Compressor Accessories Fittings Kit Aluminum T/Auto Air Fitting Set - Amazon.com