It is a measure of activitly level where a higher number indicates a higher degree of activation. It is a measure of the micropore content of the activated carbon.
This means that only the purest, most effective carbon is used to deliver the BEST air filtration and odor control possible. This filter is a good option for any 4' x 4' with a MAX of 8' x 8' Grow Rooms.
Please message with any questions. QUALITY YOU CAN TRUST, SERVICE YOU CAN COUNT ON - At HTG we only offer products that deliver value and quality - we won't compromise our reputation to make a buck. We stand behind all of our items 100%, and we're here to help if there's ever an issue. Message us for immediate assistance.With a feedback score of 85,000+, you know you can rely on us for your garden's needs! WE WANT YOU TO SUCCEED. HTG Supply is a home-grown USA company that has been part of the growing community for over a decade now. We operate our own retail website, or you can visit one of our stores across the country.
We have a knowledgeable staff with real experience that can help you get what you need to achieve great results. Please visit our HTG Supply website for store locations and hours. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Fans, Filters & Environmental Control\Carbon Filters".The seller is "htgsupply" and is located in this country: US. This item can be shipped to United States.