Hvac Manual Damper knob White Designed for 25 Inch Shaft dampers

Shaft Length 1 Inch includes handle1/4 Inch shaft Size – Plastic Construction – Easy grab handle Easily operates the damper from open-to-close positionfor use with HVAC Ceiling Dampers & Round Duct Ring with Butterfly Damper – SP: HVAC damper knob, damper knob, heating knob, vent knob, AC vent knob, heat knob, furnace knob, vent handle, damper handle – UPC: 665570203277