damper closes with screwdriver
| duct opening | no damper | with damper |
| 2.25 by 10 inches | $41.95 | not available |
| 2.25 by 12 inches | $41.95 | not available |
| 2.25 by 14 inches | $47.95 | not available |
| 4 by 8 inches | $46.95 | not available |
| 4 by 10 inches | $56.95 | $102.95 |
| 4 by 12 inches | $57.95 | $112.95 |
| 4 by 14 inches | $58.95 | not available |
| 6 by 6 inches | $56.95 | not available |
| 6 by 10 inches | $61.95 | $121.95 |
| 6 by 12 inches | $66.95 | $140.95 |
| 6 by 14 inches | $71.95 | not available |
| 8 by 10 inches | $84.95 | $150.95 |
s&h 12%,
but least $14.95
add $13.95
for screwholes
and screws
