Master Flow® Return Air Box Specs
Master Flow® Return Air Box Docs
Master Flow® Return Air Box Videos
30-gauge, zinc-coated galvanized steel construction provides durability
Comes with an existing collar or allows you to cut your own opening and install a collar to attach pipe or flexible duct as needed
Used in a ceiling or wall application as an air return chamber
Product availability is subject to change without notice. Not all products are available from all facilities.
GAF factory-certified roofing companies near you
Get automatic Lifetime Protection on your entire GAF roofing systemWhen you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.
Where to buy
Find a GAF distributor near you.