Heating, Venting & Cooling

Ducting & Venting

In-Wall Duct System

Master Flow In-Wall Duct System

88 Results

Best Seller

3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct

Master Flow3.25 in. x 10 in. x 3 ft. Half Section Rectangular Stack Duct

Model# RD3.25X10X36

$1538

3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct

Master Flow3.25 in. x 14 in. x 3 ft. Half Section Rectangular Stack Duct

Model# RD3.25X14X36

$1298

Best Seller

6 in. Air-Tite Take-Off

Master Flow6 in. Air-Tite Take-Off

Model# ATTO6

$1032

6 in. Starting Collar Take Off - Snap Together

Master Flow6 in. Starting Collar Take Off - Snap Together

Model# SCF6

$823

Best Seller

10 in. x 3-1/4 in. to 6 in. Stack Boot

Master Flow10 in. x 3-1/4 in. to 6 in. Stack Boot

Model# SB10X3.25X6

$1593

10 in. x 3-1/4 in. to 4 in. Stack Boot

Master Flow10 in. x 3-1/4 in. to 4 in. Stack Boot

Model# SB10X3.25X4

$1498

3.25 in. x 10 in. x 5 ft. Half Section Rectangular Stack Duct

Master Flow3.25 in. x 10 in. x 5 ft. Half Section Rectangular Stack Duct

Model# RD3.25X10X60

$1584

Best Seller

3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar

Master Flow3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar

Model# SCF3.25X10

$1898

60 in. S-Cleat

Master Flow60 in. S-Cleat

Model# CS60

$798

Top Rated

3-1/4 in. x 10 in. x 7 in. Hood Transition Fan Boot

Master Flow3-1/4 in. x 10 in. x 7 in. Hood Transition Fan Boot

Model# FB3.25X10X7

$1648

Top Rated

8 in. Starting Collar Take Off - Snap Together

Master Flow8 in. Starting Collar Take Off - Snap Together

Model# SCF8

$898

8 in. Air-Tite Take-Off

Master Flow8 in. Air-Tite Take-Off

Model# ATTO8

$1153