175,000 btu Integral Propane Regulator w/POL - Pro Tank Supply
Amazon.com : only fire Vertical Two Stage Propane Regulator for Propane Tank, 1/4" Female NPT Inlet and 3/8" Female NPT Outlet : Patio, Lawn & Garden
Emerson Fisher Type R632A-CFF 1/4 in. FNPT x 3/4 in. FNPT Aluminum Integral Two Stage Regulator w/ 9-13 in. w.c. Spring, 950K BTU/HR - John M. Ellsworth Co. Inc.