Hikari Simple Inner Window Frame Rail Set for Balconies and Large Windows Wood Grain PTM-K 1 S

Catalog number: PTM-K Features: ● Simply attach to the inside of an existing window to save energy, greatly increase heating and cooling efficiency, and reduce condensation. ● When installed with an outdoor temperature of 0°C and an indoor temperature of 20°C, the temperature at the center of the glass surface improved from 7.7°C to 14.7°C. (Tested with a window size of W1235 x H1375) Uses: ● Attach to the inside of an existing window to turn it into a double-glazed window. ● Reduces condensation in winter, saves on heating and cooling costs, provides insulation, and keeps the room warm. Specifications: Color: Wood grain; Suitable size: For sliding windows with window dimensions of 1830mm wide x 1830mm high or less; Packing size (mm) Height x Width: 1860 x 83; Window insulation performance 2.44 times (from thermal resistance), JIS insulation grade H-4 grade, 4mm thick light polycarbonate hollow board (Polycarbonate hollow board is sold separately, and cutting or other processing may be required depending on the size.) Material/Finish: PVC Set contents/Accessories: Frame Upper rail Lower rail Side cover Anti-scratch felt Note: This product alone cannot be used to create a double window. Please purchase 4mm polycarbonate hollow board sold separately.