The Ruud P-D406A Natural Gas Pool and Spa Heater delivers high-output 399,000 BTU heating capacity for dependable, all-season performance.
Designed with cupro-nickel tubing and polymer headers, this heater withstands corrosion, scale, and harsh water conditions in both residential and commercial pools.
Stainless steel and aluminum components shield heat-sensitive areas from outdoor elements and extreme temperatures.
The digital electronic control system enables precise and efficient temperature management with minimal effort.
Engineered for high-altitude operation up to 6,000 feet, the unit performs reliably across varied environments.
With ASME certification and rugged construction, the P-D406A combines durability, efficiency, and heating power in one compact design.
