McDonnell & Miller FS5-D-3/4 Switch Freon Versatile Fuel Compatibility: Engineered specifically

Versatile Fuel Compatibility: Engineered specifically for the high-temperature and variable draft requirements of oil

offering the same automatic reset limit switch functionality required for modern HVACR diagnostic protocols

Built to withstand continuous duty

Unlike mechanical butterfly valves or mod motors

Common Questions What is the importance of the date code for the A-4000-158

McDonnell & Miller FS5-D-3/4 Switch Freon Versatile Fuel Compatibility: Engineered specifically3 4" NPT In Line General Purpose Flow Switch with Two Snap Acting SPDT Switch (Part Number 114763) FS5 D 3 4 is the direct replacement for FS5 3 4 (EXTRA SWITCH)