Ducting Collar 4" - Galvanized Steel Pumps & Irrigation Built in suction power allows

Built in suction power allows for a very tight trim

bulb replacements and heat are the biggest problems indoor growers face

leading to stronger plants

accurately compensated readings even during sudden temperature fluctuations

000 rated initial lumens

Ducting Collar 4" - Galvanized Steel Pumps & Irrigation Built in suction power allowsA 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