Designed to keep your home cooler in hot weather and warmer in cold weather, Pilkington's Energy Advantage Low-E is the clearest Low-E available. It is color neutral, so there's no blue, green or bronze tints to reflect off its surface. And, it performs better than any other Low-E glass in our cold, northern climate.
Tests have proven that Energy Advantage Low-E is the only Low-E glass that will actually outperform an R-19 wall in terms of net heat loss!
Utilizing the Edgetech Super Spacer® all foam design, condensation is virtually eliminated on the Harbor Window™. Warm-edge Super Spacer® is a completely non-metallic spacer, unsurpassed in thermal performance, conducting far less cold than traditional aluminum spacer systems.