Brand: Seifert Item: Fan hood IP Rating: IP56 Material: Carbon steel Application: For increasing the protection classification of side-mounted fans and grilles NEMA Rating: 3R/4/12 Maximum Covered Area: 4.19 x 4.19in Gasket Type: Silicone Maximum Fan Cutout Size: 3.62 x 3.62in Seifert fan hood, fits 3.62 x 3.62in fan cutout, carbon steel, silicone gasket, NEMA 3R/4/12, IP56, for increasing the protection classification of side-mounted fans and grilles.