Amazon.com: Maxitrol RV48L Liquid Propane Pressure Regulator, 1/2" FPT Thread, 3/4" In and Out Opening, 1/2 PSIG In, 5"-12" WC Out : Industrial & Scientific
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Maxitrol RV48-1/2 1/2" Gas Regulator, 1/2 psi Inlet Pressure: Compressed Air Combination Filters And Regulators: Amazon.com: Industrial & Scientific