The Hayward Universal H-Series Heater is certified for low NOx emissions and meets clear air quality standards. It is an energy efficient, high-performance heater that is ideal for residential spas and pools. The heater features a cupro nickel heat exchanger that is highly resistant to saltwater corrosion.

• Patented cupro nickel finn plate heat exchanger with bronze header as standard
• Independent left or right side electric, water and gas connections
• ASME pressure relief valve included as standard
• Easy installation and service via access of single front panel
• Easy dual voltage conversion with fuse-protected circuit boards