Maxline M7500 Master Kit, 3/4-Inch x 100-Feet Kit includes: 100 ft; of 3/4-Inch Tubing, (3) Air Outlet Kits, (2) Tee Fittings, 3/4-Inch Straight Fitting, (20) Pipe Clips, Debar and Cutter Tool 175 psi maximum working pressure, 3/4-Inch inside diameter x 1-Inch outside diameter Compression style nickel plated brass fittings Recommended usage 150 ft.; maximum from the air compressor, up to 4000 sq.; ft.; buildings, up to 10-HP air compressor Use only with Maxline 3/4-Inch system