Pneumatic Universal Joint Coupler Adapter Male Fitting 1/4'' Female Alloy Air Compressor Automotive Parts - Walmart.com
JME 1 in. Reusable Curb Pump Hose Couplings - Swivel Type - John M. Ellsworth Co. Inc.
Husky 1/4 in. IM Swivel Plug - 3/8 in. NPT (M) (2-Pack) HDA22200 - The Home Depot
4Pcs 360 Degree Swivel Air Hose Connector 1/4in NPT Thread Industrial Air Fittings Pneumatic Tool Adapter Air Hose Joint Coupler - Amazon.com
Hromee 18 Pieces Air Coupler And Plug Kit, 1/4-Inch Npt Air Hose Fittings And Compressor Accessories With Universal Quick Coupler, Brass Ball Valve, Swivel Air Plug And Tee Pipe Fitting - Newegg.com