System Safety: Prevents catastrophic heat exchanger failure by instantly cutting the gas valve circuit if the supply plenum exceeds 200°F

Key Benefits: OEM Compatibility: Specifically designed to replace older HH18HA292 and HH18HA291 models without modification

How do I know if the packing needs replacement

Always confirm the tube length before installation

Mueller W01063 1-5/8" Coupling System Safety: Prevents catastrophic heatThe Mueller W01063 is a professional grade 1 5 8" copper coupling engineered for high pressure HVACR and potable water applications. This wrot copper fitting (WC 400 series) features a rolled tube stop to ensure precise alignment and mechanical integrity during the brazing or soldering process. Built from UNS C12200 alloy, the coupling provides superior thermal conductivity and corrosion resistance, essential for maintaining system performance in