Titan SC6 513 Spray Tip 661-513 or 661513. The SC6 513 661-513 is equal in performance to the SC6 511 662-513. Solvent Proof Seal Hand tight design Highest quality tungsten carbide assures longest life and durability Fewer passes and better coverage than competitors because of full fan pattern with minimal feathering Insertion and knockout tool for no fuss assembly Ergonomic handle design Flow indicator One seal for all coatings