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 in female NPT and the outlet is a 3/8 in female NPT. The outlet pressure is 11 in W.C and has a 160,000 Btu/hr capacity. Use Camco's 59843 20 in pigtail propane hose connectors ACME x 1/4 in male NPT to connect to a 20 lb or 30 lb LP tank with ACME threads.