Pentair Heat Exchanger Kit for MasterTemp and Max-E-Therm 400k ASME | 474956Product Overview The Sta Rite Max E Therm 400 HD Natural Gas Heater SR400HD is a heavy duty, high performance pool and spa heater designed for fast heat up, reliable operation, and long lasting durability. With 400,000 BTUs of heating power, natural gas operation, and a cupro nickel heat exchanger, this HD model is built for demanding residential pool and spa systems. The Max E Therm series is known for its compact footprint, lightweight design,

this TurboCell helps provide clean water with the softer feel many pool owners prefer from saltwater pools

Q: What model number is this upgrade kit

It is designed to detect suction or drain blockage and automatically shut the pump off

Pool and spa circulation

and chemical resistance

What’s Included

60 Hz design

Reliable Power for Your IntelliChlor System

Continuous High Flow internal air relief

Control of up to 5 temperature control devices or low voltage dry contact devices

Do not order this part by color alone

Restore Pump Performance