This is an aluminum frame made up of 13 33cm long aluminum T-slot segments. It comes with all necessary joints, screws.

13x 33cm long aluminum T-slot bars
14x right angled joints
8x   straight joint bars
36x 8mm long M5 screws
36x T-slot nuts for M5 screws
1x   Controller mounting hardware
6x   plastic end caps
3x   allen keys (for M5, M3 screws)

Note: valve mounting brackets, valves, bottles, controller shown in picture are NOT included.