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
/
In-Wall Duct System
Master Flow In-Wall Duct System
16 Results
Review Rating: 2 & Up
Brand: Master Flow
Get It Fast: Next-Day Delivery
Clear All
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
Get It Fast
In Stock at Store Today
Next-Day Delivery
Availability
Show Unavailable Products
Department
Heating, Venting & Cooling
HVAC Supplies
Ducting & Venting
In-Wall Duct System
Starting Collars
Boots
Stack Ducts
Take Offs
Stack Heads
Price
to
Go
$0 - $10
$10 - $20
Special Values
Brand
Master Flow
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Please choose a rating
Featured Keywords
round pipe
sheet metal screw
insulated flex duct
insulated flexible duct
board plenum
duct tape
metal plenum
rectangular duct
flat surface
airtight seal
bath fan
floor joists
galvanized steel
half section
hvac system
metal pipe
range hood
return ducts
tacky gasket
wall studs
4 in. diameter
4 in. starting collar take off
6 in. stack boot
6 in. starting collar take off
6 in. storm collar
8 in. starting collar take off
10 in. starting collar take off
12 in. starting collar take off
30 gauge
air register
duct run
flexible duct
rectangular stack duct
right angle
right side
riser duct
round duct
stack duct
vented range hood
+ View All
Best Seller
$
15
.
38
(128)
Model# RD3.25X10X36
Master Flow
3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct
Add to Cart
Compare
Best Seller
$
15
.
93
(166)
Model# SB10X3.25X6
Master Flow
10 in. x 3-1/4 in. to 6 in. Stack Boot
Add to Cart
Compare
$
12
.
33
(19)
Model# RD3.25X14X36
Master Flow
3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct
Add to Cart
Compare
Best Seller
$
10
.
32
(108)
Model# ATTO6
Master Flow
6 in. Air-Tite Take-Off
Add to Cart
Compare
Best Seller
$
11
.
53
(45)
Model# ATTO8
Master Flow
8 in. Air-Tite Take-Off
Add to Cart
Compare
$
7
.
98
(44)
Model# CS60
Master Flow
60 in. S-Cleat
Add to Cart
Compare
$
14
.
93
(40)
Model# SH10X6
Master Flow
10 in. x 6 in. Rectangular Stack Head
Add to Cart
Compare
$
8
.
23
(94)
Model# SCF6
Master Flow
6 in. Starting Collar Take Off - Snap Together
Add to Cart
Compare
$
14
.
98
(186)
Model# SB10X3.25X4
Master Flow
10 in. x 3-1/4 in. to 4 in. Stack Boot
Add to Cart
Compare
Top Rated
$
16
.
48
(117)
Model# FB3.25X10X7
Master Flow
3-1/4 in. x 10 in. x 7 in. Hood Transition Fan Boot
Add to Cart
Compare
$
8
.
98
(83)
Model# SCF8
Master Flow
8 in. Starting Collar Take Off - Snap Together
Add to Cart
Compare
$
10
.
90
(50)
Model# SCF10
Master Flow
10 in. Starting Collar Take Off - Snap Together
Add to Cart
Compare