Marvin Windows and Doors Ultimate Replacement Casement includes a cleaning mode that makes maintenance easier: the window swings around for better access to exterior glass. It can come in large sizes, and it has low-E II glass with argon for better climate control inside a home. The window has extruded aluminum cladding with a Kynar 500 finish. 888.537.8266. www.marvincasement.com.
