Sonic Foam System - Hex Nut and Key Grip Set - 42 Pieces - 34" (Large) garage This is the smallest option

This is the smallest option

This will screw directly onto the 1/4" or 3/8" NPT outlet of the hose

This is the 1" (25mm) version of the piping

AR Blue Clean Consumer Line

Another neat feature is the CGM "Continuous Ground Monitoring" system

Sonic Foam System - Hex Nut and Key Grip Set - 42 Pieces - 34" (Large) garage This is the smallest optionThese 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.