damper opens with screwdriver
| duct opening | no damper | with damper |
| 2.25 by 10 inches | $44.95 | not available |
| 2.25 by 12 inches | $54.95 | not available |
| 2.25 by 14 inches | $59.95 | not available |
| 4 by 8 inches | $54.95 | not available |
| 4 by 10 inches | $64.95 | $129.95 |
| 4 by 12 inches | $74.95 | $134.95 |
| 4 by 14 inches | $84.95 | not available |
| 6 by 6 inches | $49.95 | not available |
| 6 by 10 inches | $69.95 | $154.95 |
| 6 by 12 inches | $79.95 | $169.95 |
| 6 by 14 inches | $89.95 | not available |
| 8 by 10 inches | $119.95 | $184.95 |
s&h 12%,
but least $14.95
add $13.95
for screwholes
and screws
