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Dealer Locations Visit Our Gallery Green Commitment Window Ratings CSA A440 Standards U-Value Solar Heat Gain Coefficient EnergyStar Zone A B C w/m2.k Btu/h*ft2*F Energy Rating Awning Operator Designer LEA A B C D A3 B7 C5 1.76 0.31 0.48 +29 Vision LEA   A3 B7 C4 - - - - Casement Operator Designer LEA A B C A3 B7 C5 1.76 0.31 0.47 +28 Vision LEA   A3 B7 C4 - - - - Single Hung Designer LEA A B C D A3/FX B7 C3 1.87 0.33 0.56 +31 Vision LEA A B C A3/FX B6 C3 1.98 0.35 0.56 +28 Double Hung Designer LEA A B C D A3 B7 C2/C5 1.87 0.33 0.54 +29 Single Slider Designer LEA A B C D A3/FX B3 C3 1.87 0.33 0.55 +30 Vision LEA A B C A3/FX B4 C3 1.98 0.35 0.56 +28 Double Slider Designer LEA A B C D A3 B4 C3 1.87 0.33 0.54 +29 Fixed Designer Vision - pending - - - - - - - timberland chukka boots timberland mens roll-top boots roll top timberland boots timberland mens 6 inch ugg boots sale uruguay jersey 2010 Christian Louboutin Slippers