Simple Inner Window Set PTW-A HIKARI

Just installing inside the existing window, energy saving/heating effect greatly improved/condensation reduction effect.At installing at outdoor temperature of 0C and indoor temperature of 20C, the center position temperature of the glass surface improved from 7.7C to 14.7C. (tested with window size W1235 x H1370)Install inside the existing window, and turn to double windows.Color:WhiteAdaptation Size:For double sliding window of size within width 915 x height 915mmWindow thermal insulation performance 2.44 times (from standardized heat through resistance), JIS adiabatic grade H-4 grade, numerical value using 4mm thick light polycarbonate hollow board. (polycarbonate hollow boards are sold separately.)PVCCutting work is required.