The 4-Ton 18 SEER2 Modulating Heat Pump with the Endeavor Condensing Split Heat Pump R-410A and Multi-Position Air Handler Electric Heat is a top-of-the-line HVAC system that provides reliable and efficient cooling and heating for your home. With a SEER rating of 18, this unit is highly energy efficient and can help reduce your energy bills while maintaining quality air. This modulating heat pump system design allows for quiet operation and easy installation. Components included are the 18 SEER2 R-410A Condenser, 4.0 Ton 410A Air Handler, 15kW 1.5-5.0 Ton Heat Kit, and EcoNet Comm Thermostat. This model is perfect for homes needing consistent cooling and heating throughout the year. Trust the 4 Ton 18 SEER2 heat pump HVAC system to keep you comfortable all year round.