Pentair Heat Exchanger Kit, for 400,000 BTU HD Heaters | 474065 Jack's Magic Aquachek Borate Test Strips help

Aquachek Borate Test Strips help you quickly assess borate levels in your pool water

and plug into a compatible power source as part of your pool maintenance workflow

or compromised

Poor sealing may reduce circulation efficiency

Manufacturer part number 195339

Pentair Heat Exchanger Kit, for 400,000 BTU HD Heaters | 474065 Jack's Magic Aquachek Borate Test Strips helpWhat This Part Is Used For Pentair 474065 Kit Heat Exchanger 400K HD Heaters, Mfg is a replacement heat exchanger kit for compatible 400K HD Pentair heater models. It transfers combustion heat to circulating pool water. Why This Part Matters A compromised heat exchanger can lead to internal leaks or reduced heating performance. Replacing it restores proper heat transfer and heater efficiency. Reliable thermal exchange is critical for consistent water