SKU: 54452963995
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the QC-4 cartridge can be used in R-410A applications
ensuring long-term performance in diverse mechanical systems
including specific package units like the PGE036 series
the 5/16" SAE flare size is frequently utilized in R-410A mini-split service ports
or R-502 setups at a 2-ton capacity
Carrier HH18HA449 Rollout Switch the QC-4 cartridge can beThe Carrier HH18HA449 Rollout Switch is a critical safety component designed to detect and respond to flame rollout conditions in gas fired furnaces. This genuine OEM part serves as the advanced replacement for the obsolete HH18HA350, ensuring full compatibility with a wide range of Carrier, Bryant, and Payne heating systems. Engineered as a Single Pole, Single Throw (SPST) switch, it features a factory calibrated trip point of 350 degrees F. When the