With Airline’s Adjustable and Combination Blade Louvers, you can open the louver blades or close them off, if necessary. These specialized louvers can provide ventilation for your HVAC system and protect it from outside elements like rain water. Available models are equipped with drainable and non-drainable blades. Browse our available models below or use our Product Pro to narrow your search.

Product Pro


Frame Depth
  • 4”
  • 6”
  • 7”
Drainable Blade
  • Drainable
  • Non-Drainable
Stationary Blade Angle
  • 35°
  • 37°
  • 40°
  • 45°
  • Combination
  • Adjustable Only
Material
  • Aluminum
  • Galvanized Steel
  • Other
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4” Deep Adjustable Drainable Blade Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: .14 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Drainable
  • Blade Angle: Adjustable
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4” Deep Adjustable Drainable Blade Louver with Concealed Actuator

  • Frame Depth: 4” Deep
  • Pressure Drop: .14 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Drainable
  • Blade Angle: Adjustable
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4” Deep Non-Drainable Pin-Lock Blade Adjustable Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: .16 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable
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6” Deep Drainable Blade Adjustable Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .145 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Drainable
  • Blade Angle: Adjustable
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6” Deep Drainable Blade Adjustable Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Drainable
  • Blade Angle: Adjustable
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6” Deep Non-Drainable Blade Adjustable Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .15 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable
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6” Deep Non-Drainable Blade Adjustable Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable
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6” Deep Non-Drainable Pin-Lock Blade Adjustable Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .14 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable
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6” Deep Non-Drainable Pin-Lock Blade Adjustable Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable
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4” Deep Drainable Blade Combination Louver with Concealed Actuator

  • Frame Depth: 4” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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4” Deep Drainable Blade Combination Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: .14 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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4” Deep Drainable Blade Combination Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: View submittal document for details.
  • Frame Material: .080” thick extruded aluminum, 6063-T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Stationary – Drainable Adjustable – Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .11 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .14 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Stationary – Drainable Adjustable – Airfoil, Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Exhaust Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .19 in. w.g. at 1000 fpm without Face Linkage, .08 in. w.g. with Face Linkage fully open
  • Frame Material: .080” thick extruded aluminum, 6063-T52 alloy.
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Stationary – Drainable Operable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .145 in. w.g. at 1000 fpm
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 16”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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6” Deep Drainable Blade Combination Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Stationary – Drainable Adjustable – Non-Drainable
  • Blade Angle: 35° for Stationary Blades
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4” Deep Adjustable Drainable Blade Steel Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: .11 in. w.g. at 1000 fpm
  • Frame Material: 18 ga. Galvanized Steel
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Drainable
  • Blade Angle: Adjustable up to 45°
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4” Deep Adjustable Non-Drainable Blade Steel Louver

  • Frame Depth: 4” Deep
  • Pressure Drop: .20 in. w.g. at 1000 fpm
  • Frame Material: 18 ga. Galvanized Steel
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Non-Drainable
  • Blade Angle: Adjustable up to 45°
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6” Deep Adjustable Drainable Blade Steel Louver

  • Frame Depth: 6” Deep
  • Pressure Drop: .12 in. w.g. at 1000 fpm
  • Frame Material: 18 ga. Galvanized Steel
  • Minimum Panel Size: 12” x 12”
  • Blade Type: Drainable
  • Blade Angle: Adjustable up to 45°
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6” Deep Drainable Combination Louver with Concealed Actuator

  • Frame Depth: 6” Deep
  • Pressure Drop:
  • Frame Material: .080” thick extruded aluminum, 6063-T6/T52 alloy.
  • Minimum Panel Size: 12” x 19”
  • Blade Type: Stationary – Drainable Adjustable – Airfoil, Non-Drainable
  • Blade Angle: 35° for Stationary Blades