| duct opening | no damper | with damper |
| 2.25 by 10 inches | $99.95 | not available |
| 2.25 by 12 inches | $141.95 | not available |
| 2.25 by 14 inches | $109.95 | not available |
| 4 by 8 inches | $62.95 | not available |
| 4 by 10 inches | $136.95 | $194.95 |
| 4 by 12 inches | $138.95 | $205.95 |
| 4 by 14 inches | $181.95 | not available |
| 6 by 6 inches | $92.95 | not available |
| 6 by 10 inches | $179.95 | $242.95 |
| 6 by 12 inches | $200.95 | $283.95 |
| 6 by 14 inches | $217.95 | not available |
| 8 by 10 inches | $222.95 | $286.95 |
s&h 10%,
but least $14.95
add $18.95
for screwholes
and screws
