Are you planning on exhausting air from the coolidor, or just circulating air inside? Im not sure what you accomplish by circulating air inside the coolidor? And any attempt to exhaust air from a well sealed coolidor will cause static pressure problems; ie: what you exhaust out must be replaced by intake air, otherwise you will create overload problems with the motor.JOE.M. said:I want to put a fan in both my 150 & 100 coolers, Sooooooooooooo what size do I need {computer fan} and what do I need to do {or get} to covert the plug?