Adjustable PVC Duct Damper Valve for Air Volume Control in Ventilation
Flat Rectangular Rigid PVC Duct HORIZONTAL T-Piece Flat Tee 110x54mm Ducting
Flat Rectangular Rigid PVC Duct HORIZONTAL 45º BEND 110 x 54mm Ducting Channel
Flat Rigid PVC Duct 110x54mm Round to Rectangular Adaptor Ducting Channel 100mm
100mm / 4 Inch PVC Duct Connector with Flange & Backdraft Damper
Manual PVC Duct Damper for Airflow Optimization in Grow Room Ventilation