MAXITROL Gas Pressure Regulator: Straight-Thru-Flow, 1 1/4 in Pipe Size, Upright, Vent Limiter - 490N49|RV61-1010-0062 - Grainger
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Part # Maxitrol 325-5L ( 3/4" x 3/4" connection) * 225,000 Btu & Greater, 03307270 Gas Regulator On Penn Radiant Products
MAXITROL Gas Pressure Regulator: Lever-Acting Gas, 1 in Pipe Size, Upright, 600,000 BtuH Capacity - 490N43|325-5L-88-0002 - Grainger
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M520-3/4-Maxitrol M520-3/4 Modulating Gas Valve 3/4" With 1/2" PSI Maximum Inlet Pressure - Industrial Stores
MAXITROL Gas Pressure Regulator: Lever-Acting Gas, 1 1/4 in Pipe Size, Multipoise, No Limiter - 490N57|325-7 (1-1/4") - Grainger
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