These exhaust vent adapters allow indoor growers to remove heat from the light by connecting a 4 in. exhaust tube and fan (not included) and venting the hot air outside your growing space. Designed specifically for Sunlight Supply's Sun Gro reflector, they feature powder coated steel construction for reliability and are sold by the pair. Best results will be achieved when used in conjunction with the tempered safety glass option for the Sun Gro system.
