Models Air eliminator - ADCA AE16SS - 1/2" 5 120 0 DIN 16272 Type A Gauge valve, G1/2" 3 247 0 DIN 16271 Type A Gauge valve, G1/2" 7 490 0 Air pressure regulators - 1/2" to 1" connection - model DR5440 7 374 0 Operator 10 734 2