Like every ARO product, the ARO-Flo Series are premium products built to deliver top-quality and peak performance for your operation. These solu­tions give you excellent means of keeping your air supply in top condition, enabling your tools and equipment to work every time you need them. Air line regulators provide con­trolled consistent air pressure as required for specific pneumatic equipment connected to the air system. All ARO-Flo regulators are offered with a standard adjustment range of 0-140 psig (0-9.6 bar). They offer large integral flush mount gauges. Alternative spring ranges are offered for easy conver­sion to suit different requirements. Non-relieving regulators are offered for applications where the venting of downstream pressure is undesirable. These solu­tions give you excellent means of keeping your air supply in top condition, enabling your tools and equipment to work every time you need them Relieving Model Number: R37221-200. Age Group: adult.