Sonic Foam System - Hook Set - 6 Pieces - 1/3 (Small) hex-plus-10percent 6" Pad = Fits 6"

6" Pad = Fits 6" backing plate and has a 7" face

The main differences between the two are the fittings included and the way the outlet works: Our OG Spec variant is meant to be used with the new Mosmatic Nozzle Assembly that has a built-in rubber protector

Select this option if you have a SunJoe

they seem to have better construction

Sonic Foam System - Hook Set - 6 Pieces - 1/3 (Small) hex-plus-10percent 6" Pad = Fits 6"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.