This durable, long-life filter is made of 100% aluminum mesh washable media that does not support microbial growth. It has a low pressure-drop providing optimum air flow. The frame is made from sturdy, rust resistant aluminum. Filters grease and dust. Used in ducted and non-ducted range hoods. Actual Dimensions: Approximately 11-1/2 diameter x 3/32 thick. Compatible with: Broan 99010046, Nutone 12537-000, 27340-900 Also listed as AR1182. Recommended Maintenance: Clean every 30 - 60 days as needed.