Lennox 74K96 Pressure Test Kit 320788-703 Adjustments are made via the

Adjustments are made via the internal range nut

Integrated Protection: The built-in stainless steel strainer screen protects the seat and disc from scale and pipe dope common in older steam systems

Professional technicians rely on the 234301 heater limit switch for its reliable snap-action bi-metal disc and standard 1/4 inch spade terminals

for full protection in low temperatures

Lennox 74K96 Pressure Test Kit 320788-703 Adjustments are made via theThe Lennox 74K96 Pressure Test Kit (also cataloged as LB 91053) is a precision engineered diagnostic tool designed specifically for checking the integrity of Lennox Pulse furnaces. As any veteran tech knows, identifying hairline fractures or compromised seals in a heat exchanger leak test is critical for ensuring occupant safety and preventing carbon monoxide bypass. This genuine OEM Lennox 74K96 kit provides the necessary components to isolate and