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Adjustable Elbow (2)
Air Vent (4)
Boot (2)
Cap (3)
Collar (38)
Damper (6)
Drive Cleat (1)
Duct Cap (3)
Duct Wrap (2)
Elbow (10)

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$1 to $5 (2)
$5 to $10 (41)
$10 to $15 (40)
$15 to $20 (45)
$20 to $25 (15)
$25 to $30 (20)
$30 to $35 (5)
$35 to $40 (7)
$40 to $45 (1)
$45 to $50 (3)

GAF Master Flow

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Product Image of 6" Adjustable Elbow - 26 Gauge (90-Degree)
$9.25 each
In Stock
Get 124 by Wed, Jun 24
In Stock
Get 124 by Wed, Jun 24
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Product Image of 6" Master Flow Ductboard Starting Collar Take-Off
$8.23 each
In Stock
Get 61 by Wed, Jun 24
In Stock
Get 61 by Wed, Jun 24
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Product Image of 8" Air-Tite Take-Off
$12.90 each
In Stock
Get 75 by Wed, Jun 24
In Stock
Get 75 by Wed, Jun 24
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Product Image of 6" Air-Tite Take-Off
$12.31 each
In Stock
Get 64 by Wed, Jun 24
In Stock
Get 64 by Wed, Jun 24
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Product Image of 4" Adjustable Elbow - 26 Gauge (90-Degree)
$7.34 each
In Stock
Get 54 by Wed, Jun 24
In Stock
Get 54 by Wed, Jun 24
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Product Image of 8" Master Flow Ductboard Starting Collar Take-Off
$9.45 each
In Stock
Get 75 by Wed, Jun 24
In Stock
Get 75 by Wed, Jun 24
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Product Image of 8" x 6" Master Flow 30 GA Round Reducer
$12.75 each
In Stock
Get 12 by Wed, Jun 24
In Stock
Get 12 by Wed, Jun 24
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Product Image of 60" S-Cleat
60" S-Cleat
SKU: CS60
GAF Master Flow
SKU: CS60
$8.54 each
In Stock
Get 233 by Mon, Jun 29
In Stock
Get 233 by Mon, Jun 29
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Product Image of 8" Adjustable Elbow - 30 Gauge (90-Degree)
$6.87 each
In Stock
Get 13 by Thu, Jun 25
In Stock
Get 13 by Thu, Jun 25
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Product Image of 10" Air-Tite Take-Off
$18.52 each
In Stock
Get 2 by Wed, Jun 24
In Stock
Get 2 by Wed, Jun 24
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Product Image of 6" x 4" Master Flow 30 GA Round Reducer
$11.15 each
In Stock
Get 7 by Wed, Jun 24
In Stock
Get 7 by Wed, Jun 24
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Product Image of Master Flow Gable Mount Power Attic Vent Fan (1450 CFM)
$84.39 each
In Stock
Get 33 by Thu, Jun 25
In Stock
Get 33 by Thu, Jun 25
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Product Image of 10" x 8" Master Flow 30 GA Round Reducer
$16.98 each
In Stock
Get 14 by Wed, Jun 24
In Stock
Get 14 by Wed, Jun 24
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Product Image of 6" x 6" x 6" Wye
6" x 6" x 6" Wye
SKU: Y6X6X6
GAF Master Flow
SKU: Y6X6X6
$19.45 each
In Stock
Get 9 by Wed, Jun 24
In Stock
Get 9 by Wed, Jun 24
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Product Image of 4" x 4" x 4" Wye
4" x 4" x 4" Wye
SKU: Y4X4X4
GAF Master Flow
SKU: Y4X4X4
$18.05 each
In Stock
Get 30 by Wed, Jun 24
In Stock
Get 30 by Wed, Jun 24
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Product Image of Master Flow Replacement Adjustable Thermostat for Single-Speed Power Attic Vents
$35.45 each
In Stock
Get 17 by Wed, Jun 24
In Stock
Get 17 by Wed, Jun 24
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Product Image of 6" x 5' Round Metal Duct Pipe
$18.65 each
In Stock
Get 22 by Mon, Jun 29
In Stock
Get 22 by Mon, Jun 29
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Product Image of 8" to 6" x 6" Wye
8" to 6" x 6" Wye
SKU: Y8X6X6
GAF Master Flow
SKU: Y8X6X6
$19.60 each
In Stock
Get 16 by Thu, Jun 25
In Stock
Get 16 by Thu, Jun 25
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Product Image of 10" Master Flow Ductboard Starting Collar Take-Off
$12.76 each
In Stock
Get 10 by Wed, Jun 24
In Stock
Get 10 by Wed, Jun 24
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Product Image of 60" Drive Cleat
$11.28 each
In Stock
Get 27 by Thu, Jun 25
In Stock
Get 27 by Thu, Jun 25
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Product Image of 8" Adjustable Elbow - 26 Gauge (90-Degree)
$9.71 each
In Stock
Get 8 by Wed, Jun 24
In Stock
Get 8 by Wed, Jun 24
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Product Image of 6" x 2' Round Metal Duct Pipe - 26 Gauge
$10.98 each
In Stock
Get 46 by Wed, Jun 24
In Stock
Get 46 by Wed, Jun 24
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Product Image of 8" x 5' Round Metal Duct Pipe
$21.44 each
In Stock
Get 37 by Mon, Jun 29
In Stock
Get 37 by Mon, Jun 29
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Product Image of 6" Damper
6" Damper
SKU: D-6
$8.52 each
In Stock
Get 36 by Wed, Jun 24
In Stock
Get 36 by Wed, Jun 24
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Product Image of 6" Master Flow Starting Collar
$6.61 each
In Stock
Get 29 by Wed, Jun 24
In Stock
Get 29 by Wed, Jun 24
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Product Image of 8" Flexible Duct and Sheet Metal Connector Splice Collar
$16.59 each
In Stock
Get 22 by Wed, Jun 24
In Stock
Get 22 by Wed, Jun 24
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Product Image of Master Flow Replacement Power Attic Vent Motor, 1/12 HP, 165W
$64.48 each
In Stock
Get 17 by Wed, Jun 24
In Stock
Get 17 by Wed, Jun 24
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Product Image of 14" Master Flow Ductboard Starting Collar Take-Off
$14.69 each
In Stock
Get 22 by Wed, Jun 24
In Stock
Get 22 by Wed, Jun 24
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Product Image of 6" Round Duct Cap
$9.01 each
In Stock
Get 72 by Wed, Jun 24
In Stock
Get 72 by Wed, Jun 24
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Product Image of 4" x 2' Round Metal Duct Pipe - 26 Gauge
$10.24 each
In Stock
Get 28 by Wed, Jun 24
In Stock
Get 28 by Wed, Jun 24
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Product Image of 12" Air-Tite Take-Off
12" Air-Tite Take-Off
SKU: ATTO12
GAF Master Flow
SKU: ATTO12
(1)
$21.46 each
In Stock
Get 6 by Wed, Jun 24
In Stock
Get 6 by Wed, Jun 24
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Product Image of 12" Master Flow Ductboard Starting Collar Take-Off
$13.74 each
In Stock
Get 9 by Wed, Jun 24
In Stock
Get 9 by Wed, Jun 24
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Product Image of 7" x 6" Master Flow 30 GA Round Reducer
$14.13 each
In Stock
Get 22 by Wed, Jun 24
In Stock
Get 22 by Wed, Jun 24
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Product Image of 6" Flexible Duct and Sheet Metal Connector Splice Collar
$8.53 each
In Stock
Get 2 by Wed, Jun 24
In Stock
Get 2 by Wed, Jun 24
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Product Image of 8" Damper
8" Damper
SKU: D-8
$8.94 each
In Stock
Get 43 by Wed, Jun 24
In Stock
Get 43 by Wed, Jun 24
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Product Image of 10" Flexible Duct and Sheet Metal Connector Splice Collar
$19.68 each
In Stock
Get 37 by Wed, Jun 24
In Stock
Get 37 by Wed, Jun 24
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Product Image of 7" Master Flow Ductboard Starting Collar Take-Off
$8.13 each
In Stock
Get 55 by Wed, Jun 24
In Stock
Get 55 by Wed, Jun 24
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Product Image of 4" Master Flow Ductboard Starting Collar Take-Off
$5.91 each
In Stock
Get 15 by Wed, Jun 24
In Stock
Get 15 by Wed, Jun 24
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Product Image of 8" x 8" to 6" Universal Register Box
$10.36 each
In Stock
Get 19 by Wed, Jun 24
In Stock
Get 19 by Wed, Jun 24
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Product Image of 5" x 4" Master Flow 30 GA Round Reducer
$12.51 each
In Stock
Get 3 by Wed, Jun 24
In Stock
Get 3 by Wed, Jun 24
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Product Image of 10" x 10" to 8" Universal Register Box
$17.00 each
In Stock
Get 3 by Wed, Jun 24
In Stock
Get 3 by Wed, Jun 24
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Product Image of 7" Adjustable Elbow - 30 Gauge (90-Degree)
$5.89 each
In Stock
Get 15 by Wed, Jun 24
In Stock
Get 15 by Wed, Jun 24
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Product Image of Master Flow Roof Mount Power Attic Vent w/Combo H-Stat/T-Stat - Black (1500 CFM)
$179.00 each
In Stock
Get 11 by Wed, Jun 24
In Stock
Get 11 by Wed, Jun 24
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Product Image of 8" x 8" x 8" Wye
8" x 8" x 8" Wye
SKU: Y8X8X8
GAF Master Flow
SKU: Y8X8X8
$26.67 each
In Stock
Get 34 by Wed, Jun 24
In Stock
Get 34 by Wed, Jun 24
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Product Image of 10" x 4" x 6" Master Flow End Register Box
$14.98 each
In Stock
Get 5 by Wed, Jun 24
In Stock
Get 5 by Wed, Jun 24
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Product Image of 6" x 5" Master Flow 30 GA Round Reducer
$13.11 each
In Stock
Get 48 by Wed, Jun 24
In Stock
Get 48 by Wed, Jun 24
Compare
Product Image of 3" Adjustable Elbow - 26 Gauge (90-Degree)
$7.02 each
In Stock
Get 35 by Wed, Jun 24
In Stock
Get 35 by Wed, Jun 24
Compare
Product Image of 8" Round Duct Cap
8" Round Duct Cap
SKU: 8DC
$11.60 each
In Stock
Get 12 by Wed, Jun 24
In Stock
Get 12 by Wed, Jun 24
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More About GAF Master Flow
More homes and businesses in the U.S. are protected by a GAF roof than by any other product. GAF is the leading roofing manufacturer in North America, with plants strategically located across the U.S. As a Standard Industries company, GAF is part of the largest roofing and waterproofing business in the world.

Diverse, equitable, and inclusive teams are at the heart of leadership at GAF, North America's largest roofing manufacturer. GAF is committed to fostering a culture that reflects their values to connect, empower, evolve, and inspire where they embrace.