Connector Plus flexible duct connector is the premium heavy duty manufactured flexible duct connector, offering quality unmatched by others. Made for industrial and commercial applications, Connector Plus is available in a variety of special fabrics and is made with prime G-90 galvanized steel, aluminum or 316 stainless steel. The continuous 100 ft rolls readily dispense from a bench high carton. Connector Plus excels in isolating vibrations produced by air handling units, fans, blowers and other HVAC equipment.