50001464-001/B is simply the bulk packaging or updated SKU suffix for the same 12-inch sensor assembly

ensuring stable capacitance under varying thermal loads

Common Questions: How do I know if the burner tube needs replacement

refer to the manifold orifice sizing table in your specific Weil McLain boiler manual based on your altitude and model number

Built with a heavy-duty forged brass body and a 1/2" FNPT connection

Resideo K06U1143 Union Kit Els PW 29614 50001464-001/B is simply the bulkThe Resideo K06U1143 Union Kit is a professional grade installation accessory specifically engineered for high capacity 1. 25 inch potable water and HVAC systems. Designed for a precise fit with D05 and DS05 pressure reducing valves, this kit facilitates a secure, leak free connection using a sweat (SWT) interface. This 1. 25 inch sweat union kit is the industry standard for contractors requiring reliable field replacements or new installations of