In a marketplace where aesthetics are still critical elements used to convey style, appearance and performance, the ArcDuo Retrofit Kit provides customers with the opportunity to upgrade their dated louver or lens with a more contemporary dual lens shielding. The ArcDuo's design is architecturally inspired to instantly upgrade a building's look and value, while retaining the existing 2' x 2' or 2' x 4' housings. Highly efficient, cost effective, and easy to install, the ArcDuo retrofit kit is an effective “Energy Savings Alternative” for today’s environmentally conscious consumer. Certain airborne contaminants can diminish the integrity of acrylic components. Refer to the Material Compatibility tables for additional information.