This genuine Weil McLain part is engineered to withstand the rigorous thermal cycling and positive pressures typical of the Ultra gas boiler heat exchanger

with an adjustable regulator range to fine-tune manifold pressure for specific field requirements

Constructed with a heavy-duty cast iron body and durable stainless steel internal components

Corrosion-Resistant Performance: Bronze-fitted design prevents scaling and oxidation

the thermocouple is likely no longer producing the necessary millivoltage to hold the gas valve open

Copeland Comfort Control (Alco) 805350 Pressure Transducer 320788-703 This genuine Weil McLain partPRESSURE TRANSDUCER . 8 TO 7BAR 805350 is the direct replacement for 802333,?802351,?PT5 07M