Sonic Foam System - Combination Set 1/2" - 82 Pieces - 34" (Large) Subtype - Branding Accessories Back hole is 2 3/8"

Back hole is 2 3/8" and the front hole is 6 1/8" off the back wall

About 10 years ago

Outlet = 1/4" (Quick Disconnect) QD Coupler:  This 1/4" female QD accepts a 1/4" male plug

The MTM Foam Cannon comes with a zinc plated/brass plug

Air consumption (at 87 psi): 13 SCFM

Sonic Foam System - Combination Set 1/2" - 82 Pieces - 34" (Large) Subtype - Branding Accessories Back hole is 2 3/8"These are the tools I've decided to use at OGHQ, they have a nice quality to them with good ergonomics. They aren't intended to replace everything but there is a great variety of tools offered here. For the price, you cannot beat them vs something that's 2x or 3x the cost like Snap On.