Low Profile Visual Back for 3" Feather Touch Focusers - Made in the USA

I'd ordered a new visual back for the Feather Touch focuser on my SVX-140T, along with the associated adapter. I'd been using the SVX-140T for astrophotography and had misplaced the visual back. The new one arrived from Stellarvue quickly and works perfectly. To my chagrin though, when it arrived, I realized looking at it, that I instantly knew where my old one was located. I'd wrongly assumed that I was looking for a larger part that would go into the same external threads as the field flattener or the reducer, on the SVX-140T. Instead the visual back and adapter thread inside the back of the telescope, making them smaller than what I thought I was looking for. Oh well, it was a learning experience. Now I have two, so if I lose one of them then I'm still all set :)