Mr. Heater 2-Stage Propane Regulator at Tractor Supply Co.
onlyfire Vertical 2 Stage Propane Regulator with 5 ft. Propane Hose QCC/Type 1 in. x 1/4 in. Male NPT F-FPA5148-RA1 - The Home Depot
Char-Broil Steel Dual-stage Regulator in the Propane Tanks & Accessories department at Lowes.com
Propane Regulator 2 Stage 3/8 in. FPT x Pol
Skyflame RV Propane Regulator for Dual Tanks, 2 Stage Auto Changeover LP Regulator with 2-Pieces 12 in. Pigtails SK-FH0195-BK1 - The Home Depot
MEGR-1232-HBF, Compact Integral Two-stage Propane/LPG Regulator, F-POL x 1/2 FNPT, 450,000 BTU
Flame King 2-Stage Auto Changeover Propane Gas RV Regulator Kit with Two 12 in. Pigtails KT12ACR6 - The Home Depot
2-Stage Automatic Changeover LP Propane Gas Regulator with Two 18" RV Pigtail Propane Hoses with Gauge, Stainless Braided QCC1 1/4" Inverted Male Flare - Walmart.com