Gast Compressor Kit is used when you want to switch from a Devilbiss compressor to Gast compressor in Air & Air/Water machines. Includes the following assembled items: Compressor (1) Item #9862 Compressor Bracket (1) Item #40001-40 Hex Locknuts (4) Item #5603D2 45 Degree Street Elbow (1) Item #5827D1 90 Degree Street Elbow (1) Item #5800D6