Movable-Blade Wall Louvers
These gravity-operated louvers remain open only when air flows, preventing backdrafts.
Stainless steel louvers resist corrosion, so they won’t rust in harsh environments.
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 |
304 Stainless Steel Frame and Blades | |||||||||||
| 12" | 12" | 15" | 15" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 16" | 16" | 19" | 19" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 18" | 18" | 21" | 21" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 20" | 20" | 23" | 23" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 24" | 24" | 27" | 27" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 30" | 30" | 33" | 33" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 000000 |
| 36" | 36" | 39" | 39" | 2 3/8" | Single | 2,500 | -20° to 200° | No | 1/4" | 0000000 | 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 |
Combination Fixed- and Movable-Blade Wall Louvers
Fixed front blades give you consistent sight lines when viewing these louvers from outside, while hidden rear blades open and close.
Airflow is the volume of air passing through the louver. Your louver should allow the necessary airflow required for your HVAC system.
Water penetration rating is the air velocity at which water will start to pass through the louver. The higher the number, the better protected the louver is from rain.
Pressure drop is the amount of pressure lost as air passes through the louver into your system. The lower the pressure drop, the higher the airflow.
For technical drawings and 3-D models, click on a part number.
For Opening | Overall | Aluminum Frame and Blades | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wd. | Ht. | Wd. | Ht. | Dp. | Louver Panel Style | Water Penetration Rating, fpm | Pressure Drop @ Water Penetration Rating, in. of H2O | Airflow, scfm | For Maximum Air Velocity, fpm | Certification | Includes | Each | |
Recess Mount | |||||||||||||
| 12" | 13" | 11 1/2" | 11 1/2" | 4" | Single | 1,250 | 0.17 | 175 | 1,250 | AMCA Certified for Air Performance, AMCA Certified for Water Penetration | Bird Screen | 0000000 | 0000000 |
| 14" | 14" | 13 1/2" | 13 1/2" | 4" | Single | 1,250 | 0.17 | 438 | 1,250 | AMCA Certified for Air Performance, AMCA Certified for Water Penetration | Bird Screen | 0000000 | 000000 |
| 20" | 20" | 19 1/2" | 19 1/2" | 4" | Single | 1,250 | 0.17 | 1,013 | 1,250 | AMCA Certified for Air Performance, AMCA Certified for Water Penetration | Bird Screen | 0000000 | 000000 |
| 24" | 24" | 23 1/2" | 23 1/2" | 4" | Single | 1,250 | 0.17 | 1,588 | 1,250 | AMCA Certified for Air Performance, AMCA Certified for Water Penetration | Bird Screen | 0000000 | 000000 |
| 36" | 36" | 35 1/2" | 35 1/2" | 4" | Single | 1,250 | 0.17 | 4,350 | 1,250 | AMCA Certified for Air Performance, AMCA Certified for Water Penetration | Bird Screen | 0000000 | 000000 |
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 |