Introducing the RayPak 009243 Heater, the perfect solution for your pool and spa heating needs. This natural gas heater boasts an impressive 399K BTU output, providing efficient and reliable heating for larger-sized swimming pools and spas.

The RayPak 009243 Heater is also equipped with Low NOx technology, which significantly reduces the emissions of harmful nitrogen oxide gases, making it an environmentally friendly option for pool owners. Its digital IID ensures quick and easy ignition, while its copper heat exchanger ensures excellent heat transfer efficiency, resulting in optimal heating performance.

Now, the RayPak 009243 Heater includes the new ProTek Shield, a revolutionary protective module that provides superior corrosion resistance and durability. This ensures that your heater lasts longer and requires less maintenance over time, saving you time and money.

The RayPak 009243 Heater also features a user-friendly digital control panel, allowing you to easily adjust the temperature and monitor your heater's performance. Additionally, it is designed with a compact and space-saving footprint, making it easy to install in tight spaces.

In summary, the RayPak 009243 Heater is a powerful, energy-efficient, and environmentally friendly heating solution for your pool or spa. With its new ProTek Shield and advanced features, this heater offers the perfect balance of performance, durability, and convenience. Invest in the RayPak 009243 Heater today and enjoy warm and comfortable swimming experiences all year round!