Ducting Collar 4" - Galvanized Steel Ventilation/Air Conditioning or to ask what best

or to ask what best suits your current ballast and grow room setup

Ideal air/water balance

Healthy soil that is rich in organic material means healthy

Can be mixed into fertilizers and soils

This system focuses 20% more of the light to the target area than their nearest competitor’s system

Ducting Collar 4" - Galvanized Steel Ventilation/Air Conditioning or to ask what bestA steel ducting flange designed for use with applications like tumble dryers, bathroom fans, and range hoods. Crimped rims and raised lip on the duct opening for enhanced grip on ducting. Flat brim that lays flush against all flat surfaces and creates an airtight seal to keep particles out. Galvanized steel body that is corrosion resistant and can withstand high temperatures. Ducting Opening Diameter: 4 inches Collar Diameter: 7 inches Finish: Zinc