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.
| SKU | 402664 | UPC | 053713053498 |
| Weight | 0.9 | Package Width | 9.5 |
| Package Length | 9.6 | Package Height | 1.7 |
| Model Number | 1800B8R | Brand | Selkirk |