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Fact sheet providing information on window attachments and their potential for improving energy efficiency.

Website developed by the Attachments Energy Rating Council to provide consumers with credible, relevant, and comparable information about window attachments and their performance.

Webpage providing assistance with finding the AERC climate zone of particular locations to aid in selecting window attachment products.

Website developed by the Attachments Energy Rating Council to provide consumers with credible, relevant, and comparable information about window attachments and their performance.