Maintain precise system pressure and eliminate leak paths with the McDonnell & Miller 324500 Tetraseal O-Ring

Durable 3/8" brass orifice construction resists erosion and chemical degradation from inert gases

configurable between 5 and 12 Psig

34" wc switch in a system designed for a higher or lower rating can lead to improper combustion or safety lockouts

this 3-phase motor features a NEMA 254T frame and a dual-voltage 208-230/460V configuration

Carrier HH79NZ100 Thermistor Probe Refrigerant Maintain precise system pressure andThe Carrier HH79NZ100 Thermistor Probe is a precision engineered NTC temperature sensor designed for high accuracy thermal feedback in commercial and residential HVAC systems. As a genuine OEM Carrier replacement part, this probe is critical for maintaining the operational integrity of EconoMi$er 2 packages and VAV control boards. It functions by detecting resistance variations across its semiconductor material, providing the microprocessor with the