Durable Construction: Fabricated from high-grade materials to withstand constant thermal cycling and exposure to flue gas condensates

Simplifies regulator maintenance by allowing quick pressure range swaps without replacing the entire valve housing

the material is designed to seal against clean

What is the difference between the K19AT-36 and the K19AT-36H

You must always use the HH18HA493 if that is the specified Carrier replacement part for your unit

Nordyne 626612 Limit Switch Durable Construction: Fabricated from high-gradeThe Nordyne 626612 Limit Switch is a high precision, automatic reset safety control engineered for furnace overheat protection. As a critical HVAC high limit sensor, the 626612 is calibrated to open at 165F and reset once the heat exchanger temperature drops to 135F. Professional technicians recognize this as the official replacement for legacy part numbers 626561R, 626561, and 626612R. This genuine OEM furnace limit switch is standard in Nordyne,