The BASO K19AT-18 is a professional-grade Super Slim Jim universal replacement thermocouple designed for high-reliability performance in standing pilot ignition systems

managing both radial and axial loads efficiently

providing a direct-drop solution for technicians performing furnace repair or seasonal maintenance

In a mixing application

Williams P501704 Gas Valve Els PW 29614 The BASO K19AT-18 is aThe Williams P501704 Gas Valve is a critical OEM replacement part engineered for precise manifold pressure regulation in Williams Furnace heating systems. This natural gas control valve is factory set for a 3. 5" WC (Water Column) output to maintain optimal combustion efficiency and thermal output. Designed with standard 1 2" NPT connections, it ensures a secure, leak resistant interface with existing gas manifolds and pilot lines. Primarily utilized