Hayward Universal H-Series Natural Gas Heater 150K BTU | W3H150FDN Pentair EC Product The part itself is blue

The part itself is blue and is one of two pieces that cover the internals as there is a body bottom assembly that performs the same task as well as having some other features to go along with it

inspect the diffuser

it supports stable water balance and effective sanitation without guesswork

it ensures your valve operates smoothly

Old SKU - 523611

Hayward Universal H-Series Natural Gas Heater 150K BTU | W3H150FDN Pentair EC Product The part itself is blueThe 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