I use a pair of them, They are set in 1" thinwall with tape to mke up the slack, but they fit in SCH 40 perfect. The rest of it is SCH 40 1" At the bottom it is a 1" Elbow with a 1/2 " threaded corner, with a 1/2" male threaded adapter that goes to the other Elbow.
It works good. You could make it all out of thinwall, would be real lite. I put a switch in, not reqd. but cool and convenient to save battery juice. About $40 invested.