Keep your Pentair ETI 400 High-Efficiency Pool and Spa Gas Heater running at its best with the Pentair 475604 Air Orifice. This factory-original component governs the precise blending of air and gas to deliver the ideal air-to-fuel ratio needed for clean, efficient combustion. When the orifice functions correctly, it safeguards heater output, fuel economy, and operational stability across a wide range of conditions. Engineered from robust materials built to endure the constant thermal and mechanical demands of heater operation, this part is a cornerstone of proactive maintenance and extended equipment life.

Key Benefits

• Factory-Original Fit: The Pentair 475604 air orifice is purpose-built for ETI 400 High-Efficiency Heaters, delivering an exact match and guaranteed compatibility with your system.
• Precise Air-Gas Blending: Controls the ideal proportion of air to fuel during the combustion cycle, enabling your heater to deliver maximum thermal output.
• Promotes Safe Combustion: Serves as a vital safeguard against improper combustion conditions, protecting both the equipment and its surroundings.
• Heavy-Duty Construction: Fabricated from premium-grade materials engineered for continuous operation, delivering unwavering reliability throughout the heater's service life.
• Consistent Heating Output: Contributes to steady, dependable water heating by preserving system balance and minimizing component stress.
• Essential Service Component: Swapping out a degraded orifice brings heater efficiency back to factory levels and prevents interruptions to safe, normal operation.
• Pentair OEM Quality: Produced to original equipment specifications, assuring top-tier performance and extended service life.

What's Included

• Air Orifices

Compatibility

• Pentair ETI 400 Heaters

Specifications

• Brand: Pentair
• Part Number: 475604

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