1-French Tilt &Turn UPVC Highly Energy Efficient Window 49″x41.5″ Made In USA
Tilt & Turn HIGH ENERGY EFFICIENT. D ual glaze : 0.02 or better D ual glaze : 0.48 or better. Acoustic Insulation: Dual glaze: Rw = 32dB (VG4-4/24/4). Glazing : D ual glaze : Standard option:Two-pane set – 4/24/4mm Low-E.