MAKSWELD Acetylene, single stage regulators deliver excellent gas control characteristics that meet the demands of precise cutting, welding and heating applications. This single-stage regulator is designed to be compact, lightweight, medium to heavy-duty and rugged. Regulator provides accurate pressure regulation that is ideal for most industrial applications. It comes with 2 1/2″ dual brass gauge and chrome-plated bonnet with brass adjusting screw for smooth adjustment. regulator incorporates 300 CGA-inlet and minimum 9/16″ -Left handed outlet with self-reseating internal HP safety valve for safety. It features one-piece encapsulated seat design with an internal filter and a PTFE Teflon® seat. It is equipped with forged brass body and it conforms to CGA-E-4 standard for gas pressure regulators.