What spacer are you using? Window Seal uses the highest quality warm edge spacer available, exclusive to Window Seal. By WindowSeal|2019-12-11T07:25:23+00:00December 11th, 2019|Window Pane|Comments Off on What spacer are you using? Share This Story, Choose Your Platform! FacebookTwitterLinkedInRedditWhatsappTumblrPinterestVkEmail About the Author: WindowSeal Canadian Windows and Shutters Manufacturer 67 Rainbow Creek Drive, Woodbridge, Ontario L4H 0A6 (905) 264-2729