Pentair 400K Heater Heat Exchanger Kit [After Jan 2009] (474061) kempusa When a shorter plumbing run

When a shorter plumbing run needs flexibility around equipment or layout obstacles

Helps restore turbine-driven cleaner movement

A control system is useful because it helps centralize spa operation

reduced control

Pentair 400K Heater Heat Exchanger Kit [After Jan 2009] (474061) kempusa When a shorter plumbing runThe Pentair 400K Heater Heat Exchanger Kit [After Jan 2009] (474061) is a replacement heat exchanger kit for compatible 400,000 BTU Pentair heater models manufactured after January 2009. The heat exchanger is one of the most important components in a pool or spa heater, transferring heat from the combustion process to the water moving through the system. When a heat exchanger is leaking, restricted, corroded, or otherwise damaged, heater performance