Hydrofarm Reducer Options:Reducer 12" - 10" The Pro 325 system is

The Pro 325 system is engineered for commercial greenhouses and controlled environment agriculture (CEA) environments

added to nutrient reservoirs or used as a soil drench

Submersible pump + timer

The Jump Start Germination Station is an ideal way for the space-challenged gardener to start seeds indoors all year round

Hydrofarm Reducer Options:Reducer 12" - 10" The Pro 325 system isThese galvanized duct reducers can be used with fans, ducting, air cooled hoods, and ventilation systems. They allow you to connect two sides of different diameters (for example, mating ducting of one diameter to an inline fan of a different diameter).