Vertical Two Stage Propane Regulator with 3/8" Female NPT Outlet and 1/4" Female | eBay
Fisher R632 Integral Two-Stage Regulators | Flow Regulators | Instrumart
Camco 2-Stage Propane Regulator with POL 59333 - The Home Depot
Horizontal Propane Two Stage Regulator w/ POL Bulk
Horizontal Two Stage Propane Regulator, Outlet 3/8 Inch Female NPT and Inlet 1/4 | eBay
2 Stage Regulator Head for RV – Gas One
Fisher R232 Propane Regulator
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.
MEGR-1232-HBF, Compact Integral Two-stage Propane/LPG Regulator, F-POL x 1/2 FNPT, 450,000 BTU
Amazon.com : Stanbroil Horizontal Two Stage Propane Regulator with Type-1 (QCC-1) Connection for RV, Vans, Trailers, Campers : Patio, Lawn & Garden