Building Supplies

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5 In. Fresh Air Vent

5 In. Fresh Air Vent Galvanized steel construction ensures long-term use Desig... 5 In. Fresh Air Vent Galvanized steel construction ensures long-term use Designed for easy installation using metal screws Built-in screen helps to prevent entry of birds into duct system Master Flow Fresh Air Vents come with a built-in screen to... more

as low as $39.99

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Master Flow 8 inches SCF8 Duct Collar Steel 1...

Item Notes: The Master Flow 8 in. Starting Collar has a snap-together design f... Item Notes: The Master Flow 8 in. Starting Collar has a snap-together design for easy assembly. This starting collar can be used to transition from a flat surface such as a lined or duct board plenum to round pipe or insulated flexible ducts. Can also... more

as low as $94.00 $84.60

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Master Flow 12 in. W X 12 in. L White Plastic...

One-piece integral louvered resin construction for exceptional strength and el... One-piece integral louvered resin construction for exceptional strength and eliminates the need for a screen. Used for intake or exhaust venting. For flush or recessed installation. more

as low as $47.25 $34.32

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Master Flow ARCP End Plug/Connector For Use w...

Gaf Master Flow End Plug/Connector Suitable For Use With: AR10 Series Aluminum... Gaf Master Flow End Plug/Connector Suitable For Use With: AR10 Series Aluminum Ridge Vent Aluminum more

as low as $242.16 $111.25

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Master Flow R50A Roof Louver with Square Thro...

Square-top metal utility vent; recommended for kitchen duct outlets and bathro... Square-top metal utility vent; recommended for kitchen duct outlets and bathroom fan exhausts as well as ventilation; large capacity: full 50 square inches of net free ventilating area (NFA) per vent; versatile available with square throat in heavy... more

as low as $188.09 $152.45

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Master Flow 10 in. x 4 in. to 6 in. 90-Degree...

The Master Flow 10 in. x 4 in. x 6 in. 90°Register Box creates a right-angle ... The Master Flow 10 in. x 4 in. x 6 in. 90°Register Box creates a right-angle transition from round pipe or insulated flexible duct to an air register. This box is made of galvanized steel. It can be installed with sheet metal screws. It is suitable... more

as low as $21.26

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Master Flow 10 in. Round Duct Cap

Master Flow Duct Caps are used to terminate round pipe runs in HVAC systems. A... Master Flow Duct Caps are used to terminate round pipe runs in HVAC systems. An assortment of duct caps size is available to match the round pipe. Can be used for existing and new construction. Sturdy galvanized steel construction Always seal seams... more

as low as $25.99

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Master Flow RB10X4X6 10 in. x 4 in. to 6 in. ...

This Master Flow 10 in. x 4 in. to 6 in. Universal Register Box creates a stra... This Master Flow 10 in. x 4 in. to 6 in. Universal Register Box creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grille. It can be installed with sheet metal screws. It is suitable for most HVAC... more

as low as $23.33

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Master Flow 4 in. H X 18 in. W X 18.5 in. L B...

Master Flow resin square-top utility vent is designed for attic ventilation. T... Master Flow resin square-top utility vent is designed for attic ventilation. The fully enclosed hood deters rodent and insect infiltration and leaf and pine needle clogging. more

as low as $41.99 $37.68

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Master Flow 4 in. x 4 in. x 4 in. Wye Y4X4X4 ...

The Master Flow 4 in. x 4 in. x 4 in. Wyes are made of 30-Gauge galvanized ste... The Master Flow 4 in. x 4 in. x 4 in. Wyes are made of 30-Gauge galvanized steel. They are used primarily to transition from 1 pipe to 2 pipes in heating and air conditioning applications. They are easily installed with sheet metal screws (not... more

as low as $26.45

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Master Flow 18 in. W X 24 in. L White Aluminu...

One-piece integral louvered aluminum construction for exceptional strength and... One-piece integral louvered aluminum construction for exceptional strength and eliminates the need for a screen. Used for intake or exhaust venting. For flush or recessed installation. more

as low as $143.38 $88.26

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Master Flow 12 in. x 12 in. to 8 in. Ceiling ...

The Master Flow 12 in. x 12 in. x 8 in. Ceiling Register Box is made of 30-Gau... The Master Flow 12 in. x 12 in. x 8 in. Ceiling Register Box is made of 30-Gauge galvanized steel. It creates a transition from round pipe or insulated flexible duct to an air register or grille. The ceiling register box can be installed with sheet... more

as low as $32.99

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Master Flow WVA4BL Round Wall Vent 4 Black Ea...

Highlights: Color : Black Diameter: 4 inch Material: galvanized steel. Type: R... Highlights: Color : Black Diameter: 4 inch Material: galvanized steel. Type: Round Usage: For Outside Sidewall Termination of Kitchen Bath Fans Range Hoods Microwave Venting or Dryer Exhausts more

as low as $50.10 $40.81

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Master Flow SSB960AWW Roof Louver Aluminum We...

Aluminum material resists rust. Fully enclosed hood to help prevent rodent/ins... Aluminum material resists rust. Fully enclosed hood to help prevent rodent/insect infiltration and leaf/pine needle clogging. Embossed finish hides scratches and resists wear. Larger flashing with pre-drilled nail holes makes installation easier helps... more

as low as $388.17 $230.94

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Master Flow 8 in. W X 8 in. L White Plastic W...

Master Flow 8 in. W X 8 in. L White Plastic Wall Louver Master Flow 8 in. W X ... Master Flow 8 in. W X 8 in. L White Plastic Wall Louver Master Flow 8 in. W X 8 in. L White Plastic Wall Louver more

as low as $35.92 $15.85

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Master Flow EAC16X8W Aluminum Undereve Vent W...

Highlights : Size: 16 x 8 White Finish Aluminum Screened Surface mount Corrosi... Highlights : Size: 16 x 8 White Finish Aluminum Screened Surface mount Corrosion resistant 16 x 8 vents have 65 sq. ins. of net free area All purpose intake ventilation prepunched nail holes more

as low as $17.93 $14.93

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Master Flow 12 in. W X 12 in. L White Aluminu...

One-piece integral louvered aluminum construction for exceptional strength and... One-piece integral louvered aluminum construction for exceptional strength and eliminates the need for a screen. Used for intake or exhaust venting. For flush or recessed installation. more

as low as $41.55

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Master Flow Powder-Coated Rectangle White Alu...

Master Flow Under Eave Aluminum Vent is the perfect solution for cool fresh ai... Master Flow Under Eave Aluminum Vent is the perfect solution for cool fresh air circulating in your attic. The easy-install kit of this Master Flow under eave vent includes a poly mesh screen to prevent animals from crawling in. This aluminum under... more

as low as $24.02

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Master Flow 4 in. H X 16 in. W X 16 in. L Gal...

Master Flow offers a full line of easy-to-install options for providing critic... Master Flow offers a full line of easy-to-install options for providing critical intake ventilation at the soffit or undereave portion of the roof. more

as low as $29.11 $22.61

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Master Flow 7 in. Starting Collar Take Off

The Master Flow 7 in. Starting Collar is suitable for most HVAC applications. ... The Master Flow 7 in. Starting Collar is suitable for most HVAC applications. It provides a transition from a flat surface like a plenum (made from metal ductboard or insulated) to round pipe or insulated flexible duct. It can be used with ductboard an... more

as low as $11.99

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