Contemporary Cast Iron Floor Register - Special Order SizesSimple in the most positive way, this cast iron floor register will integrate flawlessly anywhere. Hefty steel louvers include a control for diverting air as necessary. Select from multiple custom register size offerings that aren't typically available but will suit your specific needs. Cast Iron Construction with Matte Black Powder Coat Finish (Rough Texture) Included Louvers Made of Stamped Steel Louvers Removable Measure Floor Opening to Choose