Rusco FS 3/4-500 3/4" 500 mesh screen. Rusco sediment filters make solid particle removal simple and economical. The Rusco replacement screen elements should be replaced approximately every 6 months to a year. The Rusco replacement filter screen can be cleaned several times before needing to be replaced. The This Rusco replacement filter element is made of polyester. The Rusco sediment screen elements are The Rusco Sediment Filter is designed to remove virtually all types of sediment&#44; including