Armstrong Fluid Technology 174031MF-013 Pump 322838-753 This 8620-104 relay kit is

This 8620-104 relay kit is an official OEM part

ensuring underlying causes like cracked heat exchangers are addressed

Its SPST (Single Pole Single Throw) normally closed circuit design orients it for high-reliability applications where automatic reset functionality is required to restore unit operation without manual intervention

Precise Fuel Regulation: Includes high-quality brass natural gas orifices designed for optimal flow rates at standard residential pressures

Armstrong Fluid Technology 174031MF-013 Pump 322838-753 This 8620-104 relay kit isThe Armstrong Fluid Technology 174031MF 013 Pump is a premium S 25 Series S circulator designed for reliable fluid movement in hydronic heating and cooling systems. As the updated, maintenance free successor to the 174031 013, this 1 12 HP hydronic circulator pump features an 1800 RPM single phase motor operating at 115V. It utilizes a durable cast iron body paired with a non ferrous impeller and an oversized stainless steel shaft for superior fluid