Heating and Cooling

Knob-operated worm gear adjusts butterfly valve, to full open or close. Controls volume evenly, not air pattern minimum air restriction. Steel ring has brown enamel finish. Includes adjustable handle.

Knob-operated worm gear adjusts butterfly valve, to full open or close. Controls volume evenly, not air pattern minimum air restriction. Steel ring has brown enamel finish. Includes adjustable handle.

Overlapping rings sepped down for efficient, draft-free diffusion. Outer ring design resists ceiling smudging. Center cone slotted for optional chain operation. White, all-steel construction.

Stamped steel construction with turn back frame. 2-way airflow pattern. 2 grille bars to an inch. Stamped 1-piece face with multilouvered damper. Metal handle. White finish. Size in description is rough opening, actual product back is 1/4" smaller.