Key Benefits Universal Compatibility: Direct OEM replacement part for York

This manual reset rollout switch is engineered with a fixed 300 degrees F trip point

Utilizing the Armstrong B1670-4 as a direct replacement part enhances the longevity of your heating infrastructure while maintaining peak energy efficiency and system reliability

This high-integrity furnace limit switch acts as a safety or operational control

it offers the durability required for chemical plants

Reznor 111849 Vent Cap 321142-301 Key Benefits Universal Compatibility: DirectFor veteran HVAC contractors, the Reznor 111849 Vent Cap is the standard OEM replacement required for high efficiency exhaust termination. This 5 inch vent cap is a critical component of the exhaust vent system, engineered specifically for Reznor UDAP, UDBP, and UDX 150 250 gas fired unit heaters. Unlike generic alternatives that can cause nuisance pressure switch trips or internal condensation, this genuine Reznor part maintains precise backpressure