QuietCool Winterized Inserts - For CL-4700, CL-5400, ES-4700 and ES-5400

The WI-1430 is a R40 winterized insert kit for the QuietCool CL-4700, CL-5400, ES-4700 and ES-5400. It is the ideal solution for people who live in cold climates. It helps to prevent cold drafts entering from your attic. During the winter months you...