AC Infinity Ducting Collar Flange Size:4 in natural ingredients including 13 essential

natural ingredients including 13 essential macro and micro elements as well as raw materials including seaweed plant extract

bright green sensor readings for easy visibility

High levels of calcium support strong plant structure and heavy development

by moving nutrients from the root zone through the xylem

AC Infinity Ducting Collar Flange Size:4 in natural ingredients including 13 essentialA 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