Insulated Sliding Curtain Panels

The easy way to insulate patio windows and sliding doors! These energy-saving curtain panels lock in the heat in the winter and block the rays in the summer! The panels effortlessly glide on the included track that adjusts from 45" to 78"-wide. Comes with four 21½"- wide panels—leave open a little or a lot to let in the light. Can be installed for either left or right-side draw; 84"-Long. Hand washable polyester with acrylic thermal backing.