Pentair ETi400 Heater Air Inlet Kit | 475971 Pool Liners Consistent brushing improves overall debris

Consistent brushing improves overall debris removal and water clarity

You’ll commonly encounter them in skimmer assemblies or as part of the main return line where water is directed back into the vessel

Three-Sided viewing to maximize ambience from multiple angles

Used in select Pentair systems

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Pentair ETi400 Heater Air Inlet Kit | 475971 Pool Liners Consistent brushing improves overall debrisWhat This Part Is Used For Pentair 475971 Kit Heater Air Inlet ETI400 is a replacement air inlet kit for compatible ETI400 heater models. It manages incoming combustion air to the heater assembly. Why This Part Matters Proper air intake is essential for balanced combustion and safe ignition. A damaged inlet can disrupt airflow and affect heater performance. Replacing it restores correct air delivery. Key Features and Specifications Pentair