Premium MH-75 mud gate valve kits are cross compatible with legacy Anson disc profile mud valves. Each kit includes replaceable seat rings that take on the wear instead of the valve body, extending the service life of the valve. All Premium kits use high quality parts and materials including stainless steel seats and inserts, and nitride hardened stainless steel gates. Seats are made with a long-lasting elastomer bonded to two stainless steel inserts and a locking device that ensures proper alignment during installation. All MH-75 style kits are good for service conditions up to 7,500 psi.