Glasfloss Industries GDS16202 GDS Series Double Strut Disposable Panel Air Filter, 12-Case Crafted Frame Eliminates Sharp Edges For Safer & Easier Handling Double Skin Dense Fiberglass for Excellent Dust Holding Capacity 10% Greater Open Media Area For Easy Air Flow Easier Incineration and Disposal - New "Double Strut" design makes it sturdy and durable. Made From 100% Recycled Materials. + We Are An Energy Star Partner