always verify the MOPD and maximum working pressure (500 psig) against your specific R410A system requirements

Enhanced Combustion Safety: Provides a precise seal for the combustion chamber to support efficient gas combustion and proper drafting

ensuring a leak-free interface in high-vibration environments

OEM Engineering: Manufactured to strict tolerances to ensure thermal consistency and reliable circuit interruption during a genuine fault

the "HH" core version is specifically optimized for severe burnout cleanup and wax removal

Cleveland Controls RFS-4300-111 Pressure Switch 320788-704 always verify the MOPD andFor veteran technicians and contractors requiring precise low pressure air monitoring, the Cleveland Controls RFS 4300 111 Pressure Switch provides a rugged, field adjustable solution for HVAC and energy management applications. This high reliability low air flow switch is engineered to sense positive, negative, or differential air pressure within a critical adjustable range of 0. 15" w. c. to 2. 0" w. c.. Designed with a silicone diaphragm and a snap