Marvin. Windows in the Ultimate Casement collection give homeowners numerous benefits ranging from qualifying for energy-efficiency tax credits to easy cleaning. The windows feature the maker’s unique “wash mode” in which the window swivels 140 degrees, allowing users to clean the exterior glass from inside the home. In addition to a variety of sizes, styles, and finishes, the collection now includes the round top and classic push-out versions. Depending on the window style and glass package selected, Ultimate Casement windows can offer U-factors as low as 0.28 and solar heat gain coefficients as low as 0.18. 888.537.7828.

Editor’s note: For the rest of 2009, Remodeling will include a Stimulus products section focusing on tax credit–eligible materials. To be eligible for tax credits, windows and doors must have at least a 0.3 U-factor and 0.3 solar heat gain coefficient, and must be placed in service between Feb. 17, 2009 and Dec. 31, 2010. For more information on provisions for windows and doors in the stimulus package, visit