Grex - 1/8"M x 1/4"F Adapter

The Grex Airbrush Adapters allow you to use a variety of different hoses and compressors. Each adapter specifies the size and type of fittings.
The AD6 and AD11 have similar fittings, but the AD6 requires a wrench to tighten, while the AD11 may be turned by hand.