Inline Fan Controller

I have the Mars hydro inline thermostat controller and fan. I wanna buy another inline fan to set up on outside of tent for flowering
 
I have the Mars hydro inline thermostat controller and fan. I wanna buy another inline fan to set up on outside of tent for flowering

Look on the bottom of the controller where the current fan is connected.
Is there a second port?
If so, it can control two fans which will run at the same speed
Ideally, the exhaust fan will be one size larger to maintain negative pressure
 
I wish i could get away with the way im doing it now. I got one of the holes for vent open taking in air and bottom velcro vent. Plants are thriving. Im just worried cuz of the 12/12 light swich and regular house lighr leaking in durind dark hours
 
I wish i could get away with the way im doing it now. I got one of the holes for vent open taking in air and bottom velcro vent. Plants are thriving. Im just worried cuz of the 12/12 light swich and regular house lighr leaking in durind dark hours
Just get a box, fit a furnace filter in the front, cut a hole in the back, attach ducting, run into tent through ports on bottom with a 90° bend in it (or just turn the filter so it has a bend in the ducting coming out the back). If you are running high CFM, you can add an inline duct fan (cheap like 30-50$ ~300cfm) Eliminates having to keep screen open, filters air coming in and stops light from entering. I go a step further and run a UV light in the box as well. Good luck
 
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