Hydro Crunch4 inch 100 CFM Booster Fan & 4" x 12" Carbon Filter with 4" x 25ft. Ducting Hydroponic Ventilation Kit

The people who are giving bad reviews either arent hooking this up correctly or they are using it for too big of a tent. I have a 24x48x60, this worked great for the first half of my grow, when the plants are in full flower then you should adjust to a higher CFM fan. Also, put the filter inside the tent and run the ducting to the outside and connect it to the fan. You want the fan OUTSIDE the tent pulling the air out through the filter!

I run a 2x4 tent with leds. This is not enough to keep it cool unless I keep my door open and the filter sleeve off the can.The motor has to connect to the the charcoal can with the ducting, it won’t fit into it directly.

My plants like it, used in conjunction with a Mylar tent to grow them and filter air

a bit noisy but my room doesnt stink. it does very well controlling the humidity n temp also. its working well in my 4x4. a bigger tent will likely require a fan w more CFM

24/7 at home 4 days no problems as exhaust did best at my setup and i buy another one for intake shlud coming todsy im happy with the stuff do the work as intended and well i will recomend it thru my friends down here at fl

Fan works well- however be aware that the picture is not what you get- meaning there is only clip to attach the duct work to the filter and fan and not the the two that are shown.

Fan died abouit 8 hours into use. Had to run out to a local store and buy a new fan. Kept it because it was cheaper to keep the filter instead of buying that new too.

Ducting is alright, carbon filter cheap, and the fan is garbage. First, the ground wire came undone after a few minutes of running without ducting even on it. Then after replacing, I've realized how underpowered and worthless the fan is. Much better sets for $10-20 more.P.S. you need at least 3 clamps and it came with 1.

Good kit filter had some loose charcoal