Hayward Universal H-Series Natural Gas Heater 150K BTU | W3H150FDN Brand_Blue Square OEM Blue Square part ensures

OEM Blue Square part ensures reliable compatibility

"Rule of thumb" you'll need an extra 4 feet of length on top of this distance to ensure it can reach the entirety of the surface of the pool (including the walls)

This frame is white and has one opening in which the vacuum tube is to be set

Patented lighting control technology

Hayward Universal H-Series Natural Gas Heater 150K BTU | W3H150FDN Brand_Blue Square OEM Blue Square part ensuresThe Universal H Series is an energy efficient, high performance, installation adaptable commitment to the pool service professional. Features: Standard cupro nickel heat exchanger Excellent salt water and chemical corrosion resistance Exclusive "Totally Managed" cupro nickel heat exchanger water flow The same water velocity through all tubes for faster heating Patented header by pass design Up to 18 percent savings by reducing pump run time Common