The Allied Gomco 01-90-3158 is a precision-calibrated replacement regulator assembly designed specifically for the Gomco 6000 and 6010 series mobile gastric drainage pumps. This assembly allows clinical staff to control and fine-tune the amount of negative pressure being delivered during intermittent suction therapy. It features a high-visibility, 2.5-inch diameter gauge that provides clear, real-time monitoring of suction levels within a clinical range of 0 to 250 mmHg. Built for hospital-grade durability, this OEM assembly ensures that the drainage unit maintains the safe, low-vacuum parameters required for patient comfort and procedural safety.