Thinline Louvers are made of heavy-gauge aluminum.
Press Release Summary:

Available in ESU-153 and ESU-154 models with blades positioned at 30° and 48° angles respectively, Thinline Louvers come in 96 in. x 48 in. single section size in frameless configuration. Suitable for interior and exterior applications, units can be installed on packaged terminal air conditioning system as exterior grilles.
Original Press Release:
Greenheck Introduces New Thinline Louvers
Greenheck’s new thinline stationary louvers can be used for interior and exterior applications where a high free area for improved air flow is required or when narrow frame depth and horizontal sightlines are desired. They are ideal for installation as exterior grilles on Packaged Terminal Air Conditioning (PTAC) units and when integrated with curtainwalls and windows to complement the exterior aesthetics in new and renovated hotels, motels, condominiums, and other multifamily housing.
Manufactured of heavy-gauge aluminum, Greenheck thinline louvers canf be specified with a variety of custom-color architectural finishes for durability and compatibility with adjacent components. Greenheck thinline louvers are available in two models: Model ESU-153 with blades positioned at 30 degree angles and Model ESU-154 with blades positioned at 48 degree angles. Both models’ maximum single section size is 96 in. x 48 in. and both models are available in a frameless configuration.
Greenheck is the worldwide leader in manufacturing and distributing air movement, conditioning and control equipment.
For more information about Greenheck thinline louvers, visit www.greenheck.com
Contact:
Sara Valiska
Greenheck
P.O. Box 410
Schofield, WI 54476-0410
Phone: (715) 359-6171
Fax: (715) 355-2399