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
Ducting & Venting
Get It Fast
In Stock at Store Today
Filters
Filters
Clear All
Review Rating: 0
Brand: Master Flow
Brand: Thermaflex
Featured Keywords: 28 gauge
Featured Keywords: round pipe
Get It Fast
In Stock at Store Today
Availability
Show Out of Stock
Department
Heating, Venting & Cooling
HVAC Supplies
Ducting & Venting
Register Boxes
In-Wall Duct System
Starting Collars & Take Offs
Transitions & Connectors
Price
to
Apply
$20 - $30
$30 - $40
$40 - $50
$50 - $100
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Featured Keywords
flexible duct
round pipe
flex duct
air register
sheet metal screw
5 in. round
7 in. round
10 in. round
30 gauge
noise deadener
5 in. slant top insulated register box
6 in. round
6 in. slant top insulated register box
8 in. round
28 gauge
duct liner
installation rails
pre-insulated r-6 register box
r value
r6 insulation
register grille
7 in. ducts
8 in. slant top insulated register box
airtight seal
built-in damper
9 in. round
duct tape
extra-long tabs
flange r-6
floor joists
View Results
All Filters
Category
Price
Availability
Featured Keywords
Review Rating: 0
Brand: Master Flow
Brand: Thermaflex
Featured Keywords: 28 gauge
Featured Keywords: round pipe
Clear All
19 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
$
80
.
45
Model# TIRB12X6X7
Master Flow
12 in. x 6 in. to 7 in. Tall Insulated Register Box Side Outlet - R4
Add to Cart
Compare
$
78
.
48
Model# TEIRB14X6X8
Master Flow
14 in. x 6 in. to 8 in. Tall Insulated Register Box End Outlet - R4
Add to Cart
Compare
$
47
.
73
Model# DTB12X12X10
Master Flow
GreenBoot 12 in. x 12 in. to 10 in. Pre-Sealed and Pre-Insulated R-6 Register Box with Installations Rails
Add to Cart
Compare
$
60
.
24
Model# SIRB12X12X10
Master Flow
12 in. x 12 in. to 10 in. Slant Top Insulated Register Box with Tabs
Add to Cart
Compare
$
75
.
49
Model# TIRB10X6X6
Master Flow
10 in. x 6 in. to 6 in. Tall Insulated Register Box Side Outlet - R4
Add to Cart
Compare
$
45
.
44
Model# ATTOD12
Master Flow
12 in. Air-Tite Take-Off with Damper
Add to Cart
Compare
$
54
.
44
Model# IRBFR614X8X9
Master Flow
14 in. x 8 in. to 9 in. Insulated Register Box with Flange R-6
Add to Cart
Compare
$
29
.
64
Model# DSCF1528
Master Flow
8 in. Ductboard Collar
Add to Cart
Compare
$
97
.
49
Model# Y16X14X12
Master Flow
16 in. x 14 in. x 12 in. Wye
Add to Cart
Compare
$
48
.
70
Model# SIRBR610X6X6
Master Flow
10 in. x 6 in. to 6 in. Slant Top Insulated Register Box with Tabs - R6
Add to Cart
Compare
$
73
.
32
Model# ATTOD16
Master Flow
16 in. Air-Tite Take-Off with Damper
Add to Cart
Compare
$
47
.
84
Model# SIRB8X8X6
Master Flow
8 in. x 8 in. to 6 in. Slant Top Insulated Register Box with Tabs
Add to Cart
Compare