this unit provides a consistent 1

Key Benefits: Dual Application Versatility: Optimized for both HBP and LBP ranges

the 0270A01167SLP provides superior corrosion resistance and thermal performance

As the direct replacement for A505-1

It's built to spec for Burnham ES2 Series boilers (including ES23 to ES26) and Burnham Series 3 boilers (303B to 306B)

York S1-2790-3171 Fan Switch R-22 this unit provides a consistentThe York S1 2790 3171 Fan Switch is an essential OEM component designed for precise fan and limit control in residential heating systems. As an industrial grade furnace fan limit switch replacement, this part ensures optimal airflow by managing the blower activation cycle and providing critical high limit safety protection. This switch is the direct manufacturer specified equivalent for the F120 35F fan switch, engineered to maintain system integrity