What is the difference between the Ultimate Insert Double Hung Window and the Tilt Pac Sash Replacement System?
The Ultimate Insert Double Hung is a complete window unit used when higher performance or traditional interior aesthetics are desired. The frame of the Ultimate Insert Double Hung is placed inside the frame of your existing window. In comparison, the Tilt Pac consists of replacement parts including an upper and lower sash, hardware and vinyl jamb liners for improved operation.