nVent Hoffman - Hoffman APWK2919NF Steel, Stainless Steel and Non-Metallic Window Kits, 31.5" x 21.5" x.31", Gray, Steel

All Window kits are easy to install and require a simple rectangular enclosure cut-out. They are ideal for indoor and outdoor Type 3R, 4 and 12 applications. Stainless Steel Window Kits are ideal for indoor and outdoor Type 3R, 4X and 12 applications where corrosion is a concern. Non-Metallic Window Kits are ideal for indoor and outdoor Type 3R, 4, 4X and 12 applications. They are also ideal for non-metallic enclosures where exterior metallic materials are not allowed and can accommodate up to .25-in. enclosure material thickness. When determining if a window kit will fit in a door or cover, be sure to allow for gaskets, data pockets, door handles, latch rods and other parts attached to the door or cover. Features: Window kits of the same size use the same interchangeable cut-out; The gasket material on all windows is resistant to oils, cutting fluids and many other liquids; All required hardware is furnished, along with assembly and cut- out instructions; The clear window of the Steel and Stainless Steel Window Kit is made of .25-in. (6mm) impact-resistant polycarbonate material; Non-Metallic Window kit are made of a single piece polycarbonate material