Manual Duct Valve Air Damper Valve 63-250 Mm Dia Ventilation Duct Valve Pipe HVAC System Butterfly Damper Valve ,Stable Performance

Colour:White Control type:Manual Diameter:63/75/90/110/160/200/250mm Features:Anti-corrosion,injection molding, smooth inner wall and low wind resistance Pressure: Medium PressureYou may also like RV Bathroom Round Mixing Valve For Yacht Caravan Hot And Cold Water ,Easy Installation.