This is a 10 gauge steel bracket that allows you to bolt on two Viair compressors outside of the vehicle and then bolt on to any flat surface. This allows you to drill only 4 holes compared to 8 small holes. It definitely takes the difficulty out of mounting a pair of compressors in a difficult to reach area or just simplifies the process.

Fits 380, 400, 444, 450, and 480 compressors.