This double coil adapter is to adapt a double vislon panel for use with a double coil zip. A double zip features twin pull sliders, known as a two way zip. A YKK coil zip is likely to have 5CN stamped on the slider.
This product is ideal if you have already purchased a double vislon panel but wish to also use it with a double coil zipper. If you have any questions about the zip types, please do not hesitate to contact us.