Smith 100109962 Blower Prover Switch is a critical safety component designed to verify adequate airflow within the combustion chamber before ignition occurs

providing the technical flexibility required for complex duct static pressure and fan proving applications

Most Honeywell tower models require two (2) HRF-C1 filters

Common Technician Questions: What are the connection sizes for this valve

always verify your model number for a precise match

Armstrong Fluid Technology 182212-645 Pump 326058-755 Smith 100109962 Blower Prover SwitchThe Armstrong Fluid Technology 182212 645 is a high performance Cast Iron Circulator Pump designed for demanding hydronic heating and cooling systems. As the direct replacement for the legacy 180210 645, this Model E30. 2 pump features a robust 2 5HP, 120Vac single phase motor operating at 3350 RPM. This maintenance free circulator utilizes a permanently lubricated design and stainless steel shaft to ensure long term reliability in commercial or