Pentair Kit Heat Exchanger 400K HD Heater | 474065Product Overview The Pentair 474065 Heat Exchanger Kit is an OEM replacement heat exchanger tube sheet coil assembly designed for select Pentair 400K HD pool and spa heaters. The heat exchanger is a major internal heater component that transfers heat from the burner system into the pool or spa water. This replacement kit is commonly used when the original heat exchanger is leaking, scaled, corroded, or no longer transferring heat properly. It is

A: It captures debris before it enters the pump

Onboard diagnostics — helps pool professionals troubleshoot heater operation more efficiently

Equipment pad plumbing repairs

or shaft seal

Part Type: Lens gasket

O-Ring & Coupling Nut is a replacement union connection kit designed for compatible Jandy pool and spa equipment

Its compact size is useful for above-ground pool setups

Durable and Corrosion-Resistant: Built to withstand the demanding pool environment

display electronics

Q: Does this include the acid tank and pump

Q: Is this a 240K or 266K heater

Wireless Handheld Remote – Control pool and spa functions from anywhere on the property