The AIRman B2400-B81 is a durable pressure protection valve with a 19/50" NPT connection. This valve is engineered to protect auxiliary air systems by maintaining a minimum air pressure, ensuring the reliable operation of critical vehicle components. Width: 1.6” Height: 2.3” Thickness: Hex Cross-Reference: Sealco 140200, Velvac 032217, Automann 170.3870VA, 223-6444, 1VLV00070, PP3-70, 8DB30211-1000 Application: Pressure Protection