AC Infinity Ducting Collar Size:4-INCH 4% / Piperonyl Butoxide …

4% / Piperonyl Butoxide …

*Part of a 2-Part Grow Formula - Use with Athena Grow B

such as lighting adapter only configurations

we need to know what we're feeding them

AC Infinity Ducting Collar Size:4-INCH 4% / Piperonyl Butoxide …A ventilation retrofitting accessory designed to connect ducting to flat surfaces and redirect exhaust to the outside. Each duct collar is made of galvanized steel that can weather extreme temperatures and is finished with a corrosion resistant zinc coating. Its pipe ending features fluted and ridged rims with a raised lip that provides a strong grip on flexible or rigid ducting. The collar end is flat and will lay flush against any flat surface