Denali Ultimate Double Hung Next Generation Interior.
The Marvin Next Generation Ultimate Double Hung Window diverts a bit from the operational norms of other double hungs on the market. But, it's because of these variations and operational considerations, that Marvin's been able to design both an easy to use and innovative window unit. For those unsure about how to best operate their window, Marvin has taken another step to ensure customer satisfaction.
Now available on Marvin's product page and YouTube channel, are instructional videos on how to use the entire window system; including the top sash, the Tilt-and-Wash feature and lastly, the venting mode function. These videos address all former and current questions and concerns about the Next Generation Ultimate Double Hung Windows.