Active Aqua Dual Diaphragm Air Pump Hydro Systems Observation Windows: Two square windows

Observation Windows: Two square windows on the front door

Containing standard 120mm fans

You can replace the water filter in 3 seconds with a single twist

Update on COSYS & COSYS20: Please note that current models now come equipped with a black rubber O-ring

and increases nutrient uptake

Active Aqua Dual Diaphragm Air Pump Hydro Systems Observation Windows: Two square windowsDescription Active Aqua Dual Diaphragm Air Pump: This pump is excellent for all hydroponic applications that require quiet, consistent, and powerful airflow. It includes a multi outlet divider that accepts 0. 25" tubing, providing up to four separate channels of high volume air output. This output can be further distributed with tees to deliver aeration via air stones to up to twelve hydroponic buckets or system reservoirs. Important Features