Custom Fan Guard 1. Size: from 25mm through 254mm 2. Standard Finish: bright nickel chrome 3. Meet safety agency requirements Fan Guards Speification: 1 ... , Zinc Coating, Black Plated. 3) Wire Fan Guard Standard Size: 25mm, 30mm, 35mm, 40mm, 50mm, 60mm, 70mm, 80mm, 92mm, 120mm, 150mm, 162mm, 254mm ...