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
AA4D45H
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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
AA4D45HM
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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
AA4S35H
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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
AA6D45H
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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
AA6D45HM
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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
AA6S45H
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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
AA6S45HM
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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
AA6S90H
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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
AA6S90HM
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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
AC4D35HM
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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
AC4D35H
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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
AC4S45H
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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
AC6D35H
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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
AC6D35HAF
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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
AC6D35HE
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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
AC6D35HM
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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
AC6S35H
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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
AC6S35HM
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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
GA4D45H
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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°
GA4S45H
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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°
GA6D45H
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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°
AC6D35HAFM
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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