Nice box! I just built something similar.

Next time you build one, use "male adapters" for your thru-wall fittings. (These are the pvc or abs fittings that are male threads on one side and female plastic pipe on the other.) They make big retaining nuts you can use to secure the fitting in place. Mounting those intake pipes the way you did had to be a royal pain in the ass.
PharmaCan Reviewed by PharmaCan on . My First Ever DIY Grow Box So here I am. Finally, after more than a month of planning, searching, buying, building, spending over US$200, with all the joy and frustration that came along with it, I finally built a grow box of my own!!! This was no easy task, since I built everything from scratch excluding the lights, ballasts, and fans. But everything else I basically painstakingly siliconed/screwed/hammered/sawed together. But I must say, the joy of looking at the finished product is just euphoric. Knowing that you Rating: 5