Active Air; 4"; Air Stone Disc; Add Oxygen To Your Hydroponic Growing System; Energizes The Growing Solution As It Aerates & Circulates Nutrients; Will Extend The Life Of Your Nutrient Solution; Help Keep Roots Healthy & Promote Exceptional Growth.
Manufacturer HYDROFARM Model# AS4RD UPC 638104004725
Length 7 in Width 5 in Height 1 in
China