Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Log In
Cart
...
Home
/
Heating, Venting & Cooling
/
HVAC Supplies
/
Ducting & Venting
/
Plenums & Air Returns
Plenums & Air Returns
Air Duct
Fiberglass
Galvanized Steel
Master Flow
Insulation R-Value: 6
Get It Fast
In Stock at Store Today
Filters
Filters
Clear All
Get It Fast
In Stock at Store Today
Availability
Show Out of Stock
Department
Heating, Venting & Cooling
HVAC Supplies
Ducting & Venting
Plenums & Air Returns
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Brand
Master Flow
Price
to
Apply
$30 - $40
$50 - $100
$150 - $200
$200 - $250
Featured Keywords
26 gauge sheet metal
job site
easy assembly
foil tape
return air box assembly
return air drop assembly
side air return
18 in. diameter
air handler
evaporator coil
r6 insulation
return air filter grille
tin snips
View Results
All Filters
Price
Review Rating
Availability
Brand
Featured Keywords
5 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
Best Seller
$
38
.
03
(16)
Master Flow
15 in. Ductboard Triangular Terminal Box
Add to Cart
Compare
$
188
.
19
(5)
17.5 in. x 28 in. Return Air Box Assembly
Add to Cart
Compare
$
220
.
77
(3)
21 in. x 28 in. Return Air Box Assembly
Add to Cart
Compare
$
58
.
86
(5)
Master Flow
20 in. x 25 in. Duct-board Return Air Box
Add to Cart
Compare
$
216
.
96
(24)
20 in. W x 20 in. L x 47 in. H Trim to Fit Plenum
Add to Cart
Compare