DeVilbiss Air Regulator Extra Sensitive – HAR-501

The DeVilbiss HAR-501 is an extra-sensitive air regulator designed for precise control in pressure feed tanks and other applications requiring fine air pressure adjustments. It features a 3/8-inch NPT (female) inlet and outlet, with a maximum inlet pressure of 250 psi and a regulated pressure range of 0 to 20 psi. The regulator is self-relieving and constructed with a reinforced Buna-N diaphragm, forged brass body, and stainless steel or brass internal components, ensuring durability and consistent performance. A 100-mesh stainless steel strainer is included to filter out impurities, and a removable bottom plug facilitates easy maintenance.