4 Inch Air Carbon Filter Odor Control with Australian Virgin Charcoal, for Inline Duct Fan, Grow Tent, Hydroponics

Excellent

Really good fan best 4 inch I’ve ever used really quiet..good value for money you get what you pay for..great whilst using app and will automatically adjust for your desired parameters of temp and humidity.. but the real jewel is the control unit the information it provides is priceless Noise levels are good only when get to really high levels like 9-10 that it gets noticeable

Great product.

I bought this because Prime was quick and I was in a situation. I can hear the Carbon inside rattling around, which is a bad sign to me. I had no intention of rebuying this it was a stopgap. There are so many filters out there that are better.

I purchased this to scrub there out take air from my grow tent! The scrubber does a great job! I’m only a month in so we will see how long it holds up for

It works and it's quite

No problems detected

This is the 2nd Mars hydro carbon filter I have used. First one lasted through 1 grow. This latest one has failed after 2 weeks. The space is 80 cubic feet and the exhaust fan is also Mars hydro ( 200+ cfm ). Smel is noticeable with space enclosed and sealed. I was not impressed with the first one and only ordered this one again because it arrived sooner than the higher rated AC Infinity. I should have been patient. Do not buy this.