Protect your Pentair ETI 400 gas heater from excessive water flow with the genuine Water Bypass Assembly, part number 475621. This safety-critical component is required whenever the water flow rate through the heater exceeds the maximum 120 GPM threshold. Once the manual bypass valve is installed, you can fine-tune it to bring flow within the heater's safe operating range, preventing internal damage from overpressure. Designed exclusively for the Pentair ETI 400 Gas Heater Model 461113, this OEM assembly ensures proper flow regulation and long-term heater reliability.

Key Benefits

• Essential Overpressure Protection: Designed to regulate water flow when rates exceed 120 GPM, shielding the heater's heat exchanger and internal components from damage.
• Adjustable Manual Valve: Once installed, the bypass valve can be precisely adjusted to dial in flow rates within the heater's recommended operating window.
• Genuine Pentair Construction: Factory-engineered specifically for the ETI 400 Gas Heater Model 461113, guaranteeing dimensional accuracy and material compatibility.
• Extends Heater Service Life: By keeping water flow within safe parameters, this assembly prevents premature wear on internal components and prolongs the heater's operational lifespan.

Compatibility

• Pentair ETI 400 Heaters

Specifications

• Brand: Pentair
• Part Number: 475621

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