You need a 6" cool tube with at least 150 cfm blower. Also, in your pics I dont see a seperate exauhst fan for the closet itself. Do you have one? You need and 6" cool tube hooked to a vortex style blower with an intake OUTSIDE the room and the exauhst OUTSIDE the room. You also need another vortex style blower exhausting the cabinet air seperatley, this blowershould be hooked up to a temp/humidity controller but can just be on all the time as well. You will need a PC fan blowing intake air into the room. I highly recommend a larger 6 inch pc fan for this but a regular 4 inch should work fine.