Movable-Blade Wall Louvers
These gravity-operated louvers remain open only when air flows, preventing backdrafts.
Motor kits (sold separately) open louver blades when air is not flowing. They also allow you to control the angle at which the louver blades open.
For technical drawings and 3-D models, click on a part number.


For Opening | Overall | Mounting | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Wd. | Ht. | Wd. | Ht. | Dp. | Louver Panel Style | For Max. Air Velocity, fpm | Temp. Range, °F | Fasteners Included | Hole Dia. | Each | |
Surface Mount | |||||||||||
Galvanized Steel Frame and Aluminum Blades | |||||||||||
10 1/2" | 10 1/2" | 13" | 13" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
12 1/2" | 12 1/2" | 15" | 15" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
14 1/2" | 14 1/2" | 17" | 17" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
16 1/2" | 16 1/2" | 19" | 19" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
18 1/2" | 18 1/2" | 21" | 21" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
20 1/2" | 20 1/2" | 23" | 23" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
22 1/2" | 22 1/2" | 25" | 25" | 2 1/2" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 00000 |
24 1/2" | 24 1/2" | 27" | 27" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
24 1/2" | 36 1/2" | 27" | 39" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
26 1/2" | 26 1/2" | 29" | 29" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
28 1/2" | 28 1/2" | 31" | 31" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
30 1/2" | 30 1/2" | 33" | 33" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
32 1/2" | 32 1/2" | 35" | 35" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
34 1/2" | 34 1/2" | 37" | 37" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
36 1/2" | 36 1/2" | 39" | 39" | 3" | Single | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
38 1/2" | 38 1/2" | 41" | 41" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
40 1/2" | 40 1/2" | 43" | 43" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
42 1/2" | 42 1/2" | 45" | 45" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
44 1/2" | 44 1/2" | 47" | 47" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
48 1/2" | 48 1/2" | 51" | 51" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
50 1/2" | 50 1/2" | 53" | 53" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
54 1/2" | 54 1/2" | 57" | 57" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
56 1/2" | 56 1/2" | 59" | 59" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |
60 1/2" | 60 1/2" | 63" | 63" | 3" | Double | 2,500 | -40° to 180° | No | 9/32" | 00000000 | 000000 |

Overall | |||||||||
---|---|---|---|---|---|---|---|---|---|
For Opening Width | Includes | Voltage | Electrical Phase | Lg. | Wd. | Ht. | Mounting Fasteners Included | Each | |
10 1/2"-36 1/2" | Motor, Motor-to-Louver Arm, Mounting Bracket | 120V AC, 240V AC | Single | 4 1/4" | 5" | 7" | Yes | 00000000 | 0000000 |
38 1/2"-50 1/2" | Motor, Motor-to-Louver Arm, Mounting Bracket | 120V AC, 240V AC | Single | 6" | 5" | 6" | Yes | 00000000 | 000000 |
54 1/2"-60 1/2" | Motor, Motor-to-Louver Arm, Mounting Bracket | 100V AC-240V AC | Single | 6" | 4" | 6 1/2" | Yes | 00000000 | 000000 |
Fixed-Blade Wall Louvers with Adjustable Register and Filter


The included filter cleans the air as it passes through these louvers. They mount through an outside wall and control airflow from the inside by adjusting the register.
For technical drawings and 3-D models, click on a part number.
Louvers | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
For Opening | Overall | Mounting | Replacement Filters | ||||||||
Wd. | Ht. | Wd. | Ht. | Dp. | Includes | Fasteners Included | Hole Dia. | Each | Each | ||
Recess Mount | |||||||||||
14" | 10" | 17" | 13" | 2 1/2" | Insect Screen, Washable Aluminum Filter | No | 1/8" | 000000 | 0000000 | 0000000 | 000000 |
20" | 14" | 23" | 17" | 2 1/2" | Insect Screen, Washable Aluminum Filter | No | 1/8" | 000000 | 000000 | 0000000 | 00000 |
Weather-Resistant Enclosure Louvers
With a gasketed sealing kit, these louvers shield your enclosure from dirt, moisture, and weather while regulating heat and stopping condensation from forming inside. All have an aluminum mesh filter that keeps out solid debris and water.
Stainless steel louvers stand up to corrosion better than powder-coated steel louvers.
For technical drawings and 3-D models, click on a part number.


Louvers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Opening | Overall | Replacement Filters | |||||||||||
Width | Height | Width | Height | Blade Thickness | Mount Style | Mounting Fasteners Included | Environmental Rating | Specifications Met | Includes | Each | Each | ||
Gray Powder-Coated Steel Frame and Blades | |||||||||||||
2 3/4" | 3" | 5 5/16" | 5 9/16" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 000000 | 00000000 | 000000 |
3 3/4" | 2 7/8" | 6 5/16" | 5 5/16" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
3 3/4" | 4" | 6 5/16" | 6 3/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
Stainless Steel Frame and Blades | |||||||||||||
2 3/4" | 3" | 5 5/16" | 5 9/16" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 000000 | 00000000 | 00000 |
3 3/4" | 2 7/8" | 6 5/16" | 5 5/16" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 000000 | 00000000 | 00000 |
3 3/4" | 4" | 6 5/16" | 6 3/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 000000 | 00000000 | 00000 |


Louvers | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Opening | Overall | Replacement Filters | |||||||||||
Width | Height | Width | Height | Blade Thickness | Mount Style | Mounting Fasteners Included | Environmental Rating | Specifications Met | Includes | Each | Each | ||
Gray Powder-Coated Steel Frame and Blades | |||||||||||||
5 3/4" | 3 1/2" | 8 5/16" | 6 3/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 000000 | 00000000 | 000000 |
5 3/4" | 5 3/4" | 8 5/16" | 8 11/16" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
7 3/4" | 3 3/4" | 10 5/16" | 6 5/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
7 3/4" | 6 1/4" | 10 5/16" | 9" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
7 3/4" | 8 1/2" | 10 5/16" | 11 3/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
7 3/4" | 13 1/4" | 10 5/16" | 16 1/8" | 0.07" | Surface | Yes | NEMA 3R | CSA Certified, UL Recognized Component | One Aluminum Mesh Filter | 0000000 | 00000 | 00000000 | 00000 |
Roof Louvers
These louvers are gravity operated. The blades open when your roof-mounted exhaust fan goes on and close when it's off, preventing backdrafts. The felt seal on the face of the blades ensures quiet closing and better protection from the weather.
Mounting bases are sold separately. Louvers fit the bottom of the mounting base and must be secured to the lip of the base with sheet metal screws (not included).
Motor kits (sold separately) let you open louvers when you’re not running your exhaust fan but still want to let air flow into your ventilation system.
Also Available: Additional louver sizes. Please select 8061T999 and specify louver dimensions.
For technical drawings and 3-D models, click on a part number.




Louvers | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Opening | Overall | 8" Overall Ht. Mounting Bases | 12" Overall Ht. Mounting Bases | |||||||||||
Wd. | Ht. | Wd. | Lg. | For Max. Air Velocity, fpm | Temp. Range, °F | Mounting Fasteners Included | Each | Inside Wd. | Each | Inside Wd. | Each | |||
Surface Mount | ||||||||||||||
Galvanized Steel Frame and Aluminum Blades | ||||||||||||||
13 3/4" | 13 3/4" | 13 3/4" | 13 3/4" | 2,000 | -40° to 180° | No | 000000 | 000000 | 14 1/2" | 0000000 | 0000000 | 14 1/2" | 0000000 | 0000000 |
15 3/4" | 15 3/4" | 15 3/4" | 15 3/4" | 2,000 | -40° to 180° | No | 000000 | 00000 | 16 1/2" | 0000000 | 000000 | 16 1/2" | 0000000 | 000000 |
17 3/4" | 17 3/4" | 17 3/4" | 17 3/4" | 2,000 | -40° to 180° | No | 000000 | 00000 | __ | 000000 | 00 | 19 1/2" | 0000000 | 000000 |
19 3/4" | 19 3/4" | 19 3/4" | 19 3/4" | 2,000 | -40° to 180° | No | 0000000 | 00000 | 21 1/2" | 0000000 | 000000 | __ | 000000 | 00 |
21 3/4" | 21 3/4" | 21 3/4" | 21 3/4" | 2,000 | -40° to 180° | No | 0000000 | 00000 | __ | 000000 | 00 | 23 1/2" | 0000000 | 000000 |
23 3/4" | 23 3/4" | 23 3/4" | 23 3/4" | 2,000 | -40° to 180° | No | 0000000 | 00000 | __ | 000000 | 00 | 25 1/2" | 0000000 | 000000 |
27 3/4" | 27 3/4" | 27 3/4" | 27 3/4" | 2,000 | -40° to 180° | No | 0000000 | 000000 | __ | 000000 | 00 | 28 1/2" | 0000000 | 000000 |
34 3/4" | 34 3/4" | 34 3/4" | 34 3/4" | 2,000 | -40° to 180° | No | 0000000 | 000000 | 35 1/2" | 0000000 | 000000 | 35 1/2" | 0000000 | 000000 |
36 3/4" | 36 3/4" | 36 3/4" | 36 3/4" | 2,000 | -40° to 180° | No | 0000000 | 000000 | __ | 000000 | 00 | 37 1/2" | 0000000 | 000000 |

Overall | ||||||||
---|---|---|---|---|---|---|---|---|
Includes | Voltage | Electrical Phase | Lg. | Wd. | Ht. | Mounting Fasteners Included | Each | |
Motor, Motor-to-Louver Arm, Mounting Bracket | 120V AC/240V AC | Single | 7 3/8" | 4 1/2" | 8 1/2" | Yes | 00000000 | 0000000 |