Camco's Horizontal Two Stage Propane Regulator has integral first and second stages that ensure smoother, more consistent flow of gas to all appliances. Its inlet is 1/4 Inch female NPT and the outlet is a 3/8 Inch female NPT. The outlet pressure is 11 Inch W.C and has a 160,000 BTU per hour capacity. Use Camco's 59843 20 Inch Pigtail Propane hose Connectors - ACME x 1/4 Inch male NPT to connect to a 20 Pound or 30 Pound LP tank with ACME threads.