This 200-degree Fahrenheit thermal cut-off is a direct replacement for gravity-vented and counterflow systems

even in cramped air handler or condenser cabinets

ensuring superior chemical resistance and reliable sealing across a broad temperature range

It is designed to communicate specifically with compatible York control boards rather than generic universal interfaces

It serves as a direct replacement in systems requiring a 2-wire connection to the heater control circuit

Taco 433-5 Air Scoop 319825-402 This 200-degree Fahrenheit thermal cut-offThe Taco 433 5 Air Scoop is a 1. 5 inch cast iron air separator designed to maintain a noiseless, air free hydronic heating or cooling system. As the direct replacement for the legacy Taco 433, this specific model features an engineered baffle that intentionally disrupts water velocity. By slowing the flow, it forces entrained air out of the solution, allowing bubbles to rise into the top collection chamber for efficient venting. This process is