SYMMONS SC-13/18 DOME WITH LOCK NUT

Hi! Thank you for asking about the Honeywell HZ322K TrueZONE Kit (DATS/Transform/HZ322 Panel). Yes, the Honeywell HZ322K TrueZone Kit is a direct replacement for the Honeywell EMM-3/U. The HZ322K is designed to replace the EMM-3/U without significant modifications to your existing setup. However, it's always a good idea to consult a professional HVAC technician at 800.228.4822 to ensure a smooth transition. Once you're ready to purchase the Honeywell HZ322K kit, just click "Add to Cart'', and fill in the required fields. Thank you for seeking an answer from PlumbersStock. Have a great day!