Restore factory-level combustion performance in your Max-E-Therm 333 propane heater with this genuine Pentair Gas Orifice Kit, model 77707-0451. Containing precision-drilled orifices matched to the 333K BTU output rating, this kit ensures propane is delivered at the correct volume and pressure for clean, complete burns. Swapping worn orifices for fresh OEM replacements eliminates inefficient flame patterns and brings your heater back to its designed heating capacity.

Key Benefits

• Engineered for Exact Gas Flow: Each orifice is drilled to the precise diameter required by the Max-E-Therm 333 platform, guaranteeing the correct air-to-fuel ratio for efficient propane combustion.
• Unwavering Heat Output: Properly sized orifices produce a stable, even flame that heats water predictably, so your pool or spa reaches and holds your desired temperature without fluctuation.
• Quick, Direct Replacement: Matches the original factory components exactly, allowing installation with basic tools and no system modifications.
• Guards Against Premature Wear: Clean combustion from correctly sized orifices minimizes soot accumulation and thermal hotspots, protecting the heat exchanger and extending the heater's productive lifespan.
• Reduced Fuel Waste: When gas flow is calibrated to specification, propane consumption stays within the manufacturer's design parameters, keeping your heating costs under control.

Compatibility

• Pentair Sta-Rite Max-E-Therm 333K BTU Propane Heaters

Specifications

• Brand: Pentair
• Part Number: 77707-0451

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77707-0451
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