The clean lines and unique features of Marvin’s Ultimate Glider, like the automatic locking system, differentiate it from other sliding windows. The integrated sash removal system makes the Ultimate Glider easy to clean. Since the Ultimate Glider won’t protrude to the outside when it’s open, it makes it ideal for areas with limited space like decks or walkways. Glazing options meet ENERGY STAR criteria to reduce heating and cooling costs, and it’s the only all wood or clad wood glider to meet a LC50 light commercial rating for air, water and structural performance.