Always verify the part number in your technical manual

specifically replacing older spark or hot surface configurations as specified in unit service manuals

When you're running 1-3/8" OD lines

The Carrier HH12ZB230 Limit Switch is a critical safety component designed for precise thermal monitoring in high-output furnace and air handler applications

Its Single Pole Double Throw (SPDT) configuration allows for seamless transition between heating and cooling stages or fan speed regulation

Emerson Alco 047614 Filter Drier Always verify the part numberThe Emerson Alco 047614 Filter Drier, specifically model EK 163S, is a premium liquid line filter drier designed for high performance moisture and acid removal in refrigeration and air conditioning systems. Featuring a 16 cubic inch desiccant bead volume, this unit utilizes a high density 20 micron mechanical filter to protect expansion valves and compressors from solid contaminants. The 3 8" ODF sweat connections ensure a reliable, leak proof joint