Hayward is always looking for ways to make pool and spa ownership as simple as possible. The latest example of this is the new universal H Series pool and spa heater. Combing advanced technology with universal fit flexibility, it’s a smart choice for virtually any new installation or existing system upgrade. Delivering state-of-the-industry performance, it is offered in 150K, 250K, 300K, 350K, and 400K BTU/hr units.