Jandy Pro Series JXi Digital ASME Commercial LowNOx, 400K BTU Pool and Spa Heater, Propane 

The Jandy Pro Series JXi ASME Pool heater sets a new standard in pool and spa heating technology with its ultra-compact size, lightweight design, and installation flexibility, making it a top choice for pool professionals and pool owners everywhere. The high-efficiency, low-NOx JXi is available in four BTU sizes, 200K, 260K, 399K, and offered in both natural and propane gas models.