The DN-10 ball valve is the most dependable ball valve on the market. Many people have asked for stainless steel options! With this release we are proud to offer many of the much needed upgrades that the standard DN10 ball valve has to offer! Stainless Steel material -Lock Nut to stop the handle from backing out on its own-Screw on cap that doesn’t get lost before your first use.Features:stainless steel material.screw on cap/covernylock nutviton sealsRated for 5000 psi