The HH18HA495 features a manual reset design

also recognized as Model 69-114

Maintaining a gastight combustion seal is critical when servicing high-efficiency equipment like AHE and GV series boilers

This L290F reset thermal switch operates as a secondary high-limit safety

Mueller W03050 Elbow The HH18HA495 features a manualWhen you're running 1 3 8" OD lines, the Mueller W03050 45 degree elbow is the industry standard for maintaining flow velocity and minimizing pressure drop in high capacity refrigeration and HVAC systems. Built from high grade wrot copper (UNS C12200), this CxC (Cup x Cup) fitting is engineered for maximum reliability in pressurized environments. Unlike standard plumbing elbows, this Streamline series fitting is UL Recognized for operating pressures