Enjoy dependable, reliable, and efficient heating for your pool and spa with the Pentair EC-462026 Mastertemp® 250 High Performance Heater designed for Natural Gas use. Boasting a robust rust-proof exterior, this heater is built to last, ensuring durability and longevity. With premix combustion technology, the Mastertemp 250 offers fast and efficient warm-ups, while built-in safety features guarantee system protection. The intuitive operation controls are rotatable and easy to use, providing a seamless experience. Certified for both outdoor and indoor installation, this heater delivers best-in-class energy efficiency, eco-friendly low NOx emissions, and quiet operation for a peaceful poolside experience. The compact design makes it compatible with smaller equipment pads and pool/spa automation systems.