Restaurant owners know that one of the keys to running a successful business is managing food cost, and fryer filter oil plays a large role. Filtering your shortening ensures the flavor of the food stays consistent and lowers operating cost. Our ANETS ENVELOPE FILTER - "12 1/4"" x 23""OFF SET HOLE ON 1 SIDE replacement filter will help extend the life of your shortening by up to 60%, saving you time and money.