Hayward W3H400FDN Pool Heater | Universal H-Series 400K BTU, Natural Gas, Low NOx propane burner Longer filtration cycles extend periods

Longer filtration cycles extend periods between cleanings for low maintenance ownership

Elevate your pool heating experience with the Universal H-Series Propane Gas 400

The ATT-4-Chem includes 4 High Voltage Relays

The Vivid 360™ LED lights replace most pool

Professional Pool and Spa Product Installation

Hayward W3H400FDN Pool Heater | Universal H-Series 400K BTU, Natural Gas, Low NOx propane burner Longer filtration cycles extend periodsTransform your pool into a year round oasis with the Universal H Series Natural Gas 400,000 BTU Low NOx Heater. Shasta Pool Supply markets the best prices on Hayward pool equipment. Specifically, the Hayward W3H400FDN Pool Heater combines energy efficiency and installation flexibility. Hayward W3H400FDN Pool Heater The Universal H Series boasts a patented header by pass design. Furthermore, it ensures uniform water flow through all tubes for faster