| duct opening | no damper | with damper |
| 2.25 by 10 inches | $109.95 | not available |
| 2.25 by 12 inches | $156.95 | not available |
| 2.25 by 14 inches | $120.95 | not available |
| 4 by 8 inches | $109.95 | not available |
| 4 by 10 inches | $150.95 | $214.95 |
| 4 by 12 inches | $153.95 | $226.95 |
| 4 by 14 inches | $200.95 | not available |
| 6 by 6 inches | $102.95 | not available |
| 6 by 10 inches | $197.95 | $267.95 |
| 6 by 12 inches | $221.95 | $312.95 |
| 6 by 14 inches | $239.95 | not available |
| 8 by 10 inches | $245.95 | $315.95 |
s&h 10%,
but least $14.95
add $19.95
for screwholes
and screws
