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Levels of Energy Efficient Mezzo Windows

Not Energy Star - Excellent All Around Budget Choice

ClimaTech double-paned, double strength glass, one pane of Low-E glass, metal alloy Intercept Spacer, and thermal insulated with Argon gas.

Energy Star - Best Value for Money Option

ClimaTech ThermD double-paned, double strength glass, one pane of Low-E glass, Stainless Steel Intercept Spacer, and thermal insulated with Argon gas.

Most Efficient - Ultimate Energy Saving Performer

ClimaTech TG2 triple-paned, double strength glass, two panes of Low-E glass, metal alloy Intercept Spacer, and double thermal insulated with Argon gas (in both air spaces).