Hayward Universal H-Series Natural Gas Heater 400K BTU | W3H400FDN Blue Square PCC2000 Lightweight by design and a

Lightweight by design and a sleek look aid in the cleaner’s ability to maneuver around the surface of the pool

This pressure relief valve was designed so the pool water can flow from an auxiliary passage and out of the float hose and sweep hose

Double-stitched and reinforced net

Please see your pool heater's manual to ensure you are using the proper part

Hayward Universal H-Series Natural Gas Heater 400K BTU | W3H400FDN Blue Square PCC2000 Lightweight by design and aThe 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