Catalog number: PTK-Q Features: ●Install on the inside of a window to save energy, greatly increase the heating and cooling effect, 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 H1372) Uses: ●Install on the inside of an existing window to turn it into a double-glazed window. ●Reduces condensation in winter, saves on heating and cooling costs, has thermal insulation effects, and keeps the room warm. Specifications: ●Color: Light Oak ●Suitable size: For sliding windows with a width of 1830 x height of 1830 mm or less ●Suitable windows: For verandas and large windows ●Package size (mm) Height x width: 1860 x 83 ●Set contents: 6 frames, 1 upper rail, 1 lower rail, 2 side covers, scratch prevention felt ●Window insulation performance 2.44 times (from standardized heat transfer resistance) JIS insulation grade H-4 grade Values using 4mm thick light polycarbonate hollow board. (Polycarbonate hollow board is sold separately.) Material/Finish: ●PVC Set contents/Accessories: ●Double-sided tape Note: ●This product alone cannot be used to create a double-glazed window. ●Please purchase 4mm polycarbonate hollow board sold separately. ●Cutting work is required. ●We do not accept direct shipping to private homes.
