Watts 0276770 Valve 320788-703 typically those requiring an adapter

typically those requiring an adapter for updated control board revisions

5" Johnson Controls valves

Common Installation Questions What are the signs of a failing Lennox 99K31 relay

The Heil Quaker ICP 1012595 Collector Box Gasket is a critical OEM furnace replacement part designed to maintain a precision airtight seal between the collector box and the heat exchanger

Watts 0276770 Valve 320788-703 typically those requiring an adapterThe Watts 0276770, also designated as the Model 174A 1. 5 75, is a high capacity boiler pressure relief valve engineered specifically for heavy duty hot water space heating applications. Constructed with a rugged bronze body, this 1 1 2 inch NPT female threaded valve is built to manage large scale hydronic systems with a massive relief capacity of 4,125,000 BTU hr. Set at 75 PSI, it provides critical overpressure protection for commercial and