Laars Heating Systems R1-054 Valve R-134A this is a metal-to-metal flare

this is a metal-to-metal flare seal

providing localized pressure control essential for maintaining narrow manifold tolerances

The Maxitrol 210DZ-1 1/4 is a heavy-duty zero governor gas regulator engineered for precise atmospheric control in industrial and commercial combustion systems

Always verify the part number against your unit's nameplate or technical service manual to ensure a correct fit

Laars Heating Systems R1-054 Valve R-134A this is a metal-to-metal flareThe Laars Heating Systems R1 054 Valve is a high capacity pressure relief valve engineered for critical safety and performance in residential and commercial boiler systems. Designed as a direct OEM replacement part, this 3 4" male x 3 4" female relief valve is calibrated for a 30 PSI discharge threshold. With a substantial thermal capacity of 535,000 BTU, the R1 054 ensures reliable overpressure protection for high output hydronic heating systems. Its