Armstrong Furnace RS35866B001 Cap Tube Assembly Constructed with a premium copper

Constructed with a premium copper heating element sheath and a built-in resistor

Broad Compatibility: Standardized for Miller and Intertherm CMF series gas-fired furnaces and Beckett burners

Key Benefits Direct OEM Match: Provides a seamless furnace limit switch replacement for S1-2702-315P and S1-2702-315P/A without field modifications

this flame rollout limit switch features robust terminals and a simplified mounting footprint for seamless replacement in high-efficiency furnaces and residential package units

the PT1 maintains thermal stability for hot pipes up to 158°F (70°C)

Armstrong Furnace RS35866B001 Cap Tube Assembly Constructed with a premium copperThe Armstrong Furnace RS35866B001 Cap Tube Assembly is a precise refrigerant metering device engineered for specific Armstrong Air and Allied Air residential cooling systems. This high pressure capillary tube assembly ensures stable superheat values by regulating liquid refrigerant flow into the evaporator coil. Constructed with heavy duty copper, the RS35866B001 is designed to withstand high cycle stress and pressure fluctuations without fracturing.