Useful Vid, could use some on screen data to so to accompany the video. It is doubling up but will help make the info easier to recognise. Thanks for doing the test and sharing.
What part are you measuring to get the 1 1/4" size? The main hose on my 6 gallon Shop Vac is 1 3/4" and the smooth endpiece where an attachment goes is just an inch. I need the short stubby brush. What do I measure to get the correct brush size? Thanks!