Tyz-All 1772-1, 72x82 White Plastic Interior Storm Window Kit. This 72" x 82" Tyz-All Plastic Interior Storm Window Kit is a low-cost way to limit the amount of unwanted air exchanges occurring through windows. By doing so, this window kit makes winter a lot easier to handle and the home much more comfortable. Every storm window kit contains a spline made of plastic and a channel system to produce the seal in the front of the window. It can be quickly installed in a few simple steps: Plastic channels should be attached around the window frame. Spread the insulation film over the face of the window. Use the spline (thin plastic strip) to hold the film in place, and lock it into the channel. If necessary, trim the spline and channels with a utility knife, and the insulation film with scissors.