1 Case (2 rolls )
24" wide x 200' long rolls
* Duct Mask is used to provide a quick temporary seal on registers and grilles when measuring duct airtightness with a Duct Blaster or Blower Door.
* With Duct Mask you can reduce the time and hassle of sealing off the duct system, and look more professional to your customers.
* Duct Mask is an adhesive backed film in an 8 wide rolls.
* Duct Mask is perforated to provide a quick, custom, one-step installation.
* Duct Mask is sold by the case, which includes two 200' long (24" wide) rolls