Louver Covers | McMaster-Carr

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Opening Width

Opening Height

Shape

Mounting Profile

Frame Material

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Mounting Location

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Blade Material

Blade Adjustability

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Opening Diameter

Blade Finished Material

Powder-Coated Aluminum

Height

For Duct Width

Adjustability

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Faceplate Width

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Not Compliant

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

REACH

For Duct Height

446 Products

Louvers

Louvers for Enclosures

Relieve heat buildup and prevent condensation from forming in enclosures

62 products

Fixed-Blade Door-Mount Louvers

Allow air to circulate through doors while maintaining privacy

58 products

Adjustable-Blade Wall-Mount Louvers

Remain open only when air flows to prevent backdrafts

34 products

Weather-Resistant Louvers for Enclosures

A gasketed sealing kit shields from dirt, moisture, and weather

21 products

Fixed-Blade Wall-Mount Louvers

Always open—our most basic wall louvers

14 products

Fixed-Blade Louvers for Block and Brick Walls

Sized to replace block or bricks

3 products

Weather-Resistant Fixed-Blade Wall-Mount Louvers

Drain water to keep it away from the front of blades

20 products

Adjustable-Width Fixed-Blade Wall-Mount Louvers

Slide out to the width you need to precisely fit your opening

5 products

Fixed- and Adjustable-Blade Wall-Mount Louvers

Fixed front blades give you consistent sight lines from the outside
Rear blades remain open only when air flows to prevent backdrafts

5 products

Heavy Duty Adjustable-Blade Wall-Mount Louvers

A thick frame and blades increase the service life

4 products

Heavy Duty Fixed-Blade Wall-Mount Louvers

A thick frame and blades increase the service life

19 products

Roof-Mount Louvers

Open only when your roof-mounted exhaust fan is on to prevent backdrafts

22 products

Fixed-Blade Wall-Mount Louvers with Adjustable Register and Aluminum Filter

Control airflow and clean the air with the included register and filter

4 products

Other Products

Return Grilles

Cover the opening where air is pulled into your HVAC system

30 products

Registers

Direct and control airflow coming out of HVAC systems

39 products

Exhaust Fans

Draw stagnant and humid air out of a room or area

65 products

Diffusers

Evenly disperse airflow into a room to maintain a consistent temperature throughout

33 products

Air Diverters

Guide air toward your workspace or deflect unwanted drafts

8 products