Andersen TW1832 (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass - No Grille Grommets Color:Pine Interior / White Exterior This sash has High-Performance Low-E

This sash has High-Performance Low-E glass

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Andersen TW1832 (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass - No Grille Grommets Color:Pine Interior / White Exterior This sash has High-Performance Low-EAndersen TW1832 (Lower Sash) White Exterior and Natural Pine Interior High Performance LowE4 Tempered Glass No Grille Grommets This Sash has no grille grommets, any interior grilles for this window will need to have the chisel style plungers. This sash has new High Performance Low E4 glass and replaces previous versions of Low E glass. High Performance Low E4 tempered glass provides outstanding insulating performance in both heating and cooling