Will this fit a Series 157S low water cut-off

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

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

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

Cleveland Controls RFS-4300-111 Pressure Switch 320788-704 Will this fit a SeriesFor 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