The Malco D4Ast is a 4" Damper With Handle . This 4", 28-gauge damper with handle allows bearing holes to be made in round duct with the use of a scratch awl. This damper comes with the nuts included.
| Manufacturer: | Malco Products |
| Use: | Ducting and Venting |
| General use | |
| Mpn # | D4AST |
| Weight | 100.00 lbs. |
