The upgraded sliding glass door system is designed exclusively for the POWER+ gen 2 pergola and delivers refined all-weather protection with improved sealing and operation. Ten-millimeter tempered glass panels work with a seamless gasket to enhance insulation, privacy and resistance to drafts while maintaining clear sightlines. A 100% aluminum rail system resists rust and corrosion and supports smooth, low-friction sliding for daily use. The enclosed sliding configuration shields interiors from wind, rain and insects to help extend pergola usability year-round.