Fox 6" Inch (150mm x 300mm) Pro Carbon Filter Professional Quality Filters

This fan is an actual beast, my old fan would just not cut it (too small for indoor grown tomatoes), so do not skimp out on your carbon filter like I did at first, do it properly or your dehumidifier will be on all the time no matter what fan you have cause the air just can’t get through and the important exchange of Co2 would be lost.Having worked out the calculations for my grow area to need at least 163 CFM with one lamp for 40 cubic feet (Measurements are for an 80 x 80 x 180cm tent)The CFM of this fans rating is 600m3/hr = 353CFM. Wow massive difference from my old 117CFM (still a great fan, also Fox, although the 4inch 100 x 150 and would be perfect for 60 x 60 x 60).This fan has allowed me to dial in negative or neutral pressure, where as before I could only get positive pressure (which makes your grow tent blow up like a balloon and can cause mould issues), so now I have so much more control with simple axial fans with speed controllers for the fans. I also no longer have to have the outlet on full, I have lots of room to pump it up a bit if I need to. Result.This fan is great quality and shipping was extremely fast. Great company, thanks guys, Highly Recommend.

Excellent piece of kit if your stealth growing, not a hint of aroma escapes with this baby, used it steady for 10months exhausting a tent and it’s still going and still doing a boss job, I’ve used a few other branded filters but this is by far the best I’ve used and half of the price. One of the things that impressed me most is that its still selling it at the same price it was a year ago, no Coronavirus price hike. Excellent

Still getting a little smell from the room but it is much better with this filter.Reasonable results for a reasonable price...

Great and essential products, high quality, I will buy again 👍

Came ahead of schedule but picked the item based on the fact I could get the pro filter for a good price, when in fact it was the hobby filter that showed up.The picture and description of the item was for the pro filter, so had expected that one. The hobby looks cheaper, has a worse dust cover, and the carbon inside lasts only half of the time.

Very good 👍

Used this filter for 9 months no smells and its still going strong

It's cheap for a reason.Lasted less than 10 weeks!