The tube bottom
1
1/2" x 1 1/2" x 1" schedule 40 Tee
1"
x 1/2" schedule 40 pvc bushing
1/2"
x 1/4" Galvanized Hex Head bushing
1/4" Male NPT plug 1 1/2" end cap
This was one of the first of the tube's that I made, as you can see I did not use the 2" x 1 1/2" schedule 40 flush bushing , 2" schedule 40 Male Adaptor or the 2" schedule 40 Screw cap. If I had the bushing would have been glued under the Tee then the adaptor ending with the cap. The purpose of the increased size would allow the removal of the inner-body for any repair that may be needed.
Inner-body
stop should extend from point to point.