Laars Heating Systems R10364300 Return Header R-407A this National Board certified valve

this National Board certified valve incorporates an ASME-rated full nozzle design and double ring control for precise blowdown adjustment

preventing the high-head pressure or auxiliary heat waste common with off-brand thermistors

non-fluctuating temperature control without the need for motorized butterfly valves or external mechanical linkages

Its compact footprint and brass body construction facilitate straightforward installation in tight mechanical headers while maintaining the structural integrity required for high-pressure differentials

This motor is typically factory-set for the standard rotation required by Nordyne blower housings

Laars Heating Systems R10364300 Return Header R-407A this National Board certified valveThe Laars R10364300 return header is a glass lined cast iron (C. I.) hydraulic component used in Laars heating systems to manage return water flow through the boiler or heater assembly. This Laars return header assembly is engineered with a glass lined internal surface to resist corrosion and scale buildup, making it suitable for long term service in hydronic heating applications. Designed as a cast iron return manifold, it ensures proper distribution