Two frame depths are available (3¼" and 4 9/16") to accommodate
all construction needs. The deeper that windows are set into the walls
of a home, the more protected they are from bad weather, maximizing energy efficiency.
TOLL FREE 1-800-570-2870
Energy Star Qualified Products
2040 Ellesmere Rd, Unit #1 Scarborough, Ontraio M1H 3B6 Canada