Frequently Asked Questions

Question: What fan rating (CFM) should I use with my Flow Filter?

Answer: Depending on the size of filter that you purchase, a higher CFM  fan will be required to effectively filter the air in your grow room. 

Our filters are compatible with all 4" and 6" inline fans on the market. 


Question: How Long will my filter last?

Answer: Our first generation carbon is premium grade, and is machine packed in filter optimally.

Estimated life span of 1.5-2 years for the 4"x 10" 

Estimated life span of 2-3 years for the 4"x 16" and 4"x 20"