Combustion Efficiency: Maintains the correct air-to-fuel ratio to ensure a steady blue flame and reduce carbon monoxide risk

this specific model (TEX 2) is balanced for R22 and R407C

maintaining the same mounting footprint and 1/4 inch NPT connection for seamless field swaps

Resilient material construction resists compression set and environmental degradation over long-term operation

Hydrotherm BM-3318 Pilot Tube 321142-301 Combustion Efficiency: Maintains the correctThe Hydrotherm BM 3318 Pilot Tube is a mission critical OEM replacement part designed for standing pilot assemblies in high efficiency Hydrotherm boilers and commercial heating units. Constructed from heavy duty brass or stainless steel, this 12 inch gas pilot line ensures a steady, regulated fuel flow to the pilot burner, maintaining the precise pilot flame signal required for reliable main burner ignition. Engineered to withstand high pressure