Active Air HD Floor Fan, 12" featured Active Aqua air stones are

Active Aqua air stones are an ideal way to add oxygen to your hydroponic growing system

steamed bone meal and micronutrients

The gel-filled pH electrode is provided with a waterproof sleeve to protect the BNC connector

closed cells or bubbles

Active Air HD Floor Fan, 12" featured Active Aqua air stones areOur Active Air Floor Fans are durable, high performance circulation floor fans that feature a redesigned motor engineered for continuous use. Each unit has been manufactured to ensure safety, reliability, and ease of use. Offering 3 speed push button operation, they can pivot to perform at a tilted or vertical angle. The fans are very tough and will easily handle even the harshest grow room environments. Featuring whisper quiet operation and heavy