


77707-0451 Pentair Propane Gas Orifice Kit for Max-E-Therm 333 Pool Heater
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
77707-0451 Pentair Propane Gas Orifice Kit for Max-E-Therm 333 Pool HeaterRestore 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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 5
make sure you get the right one for your model and engine
Fit was perfect
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Reviewed in the United States on January 31, 2026
★★★★★ 4
Works and is inexpensive
Used this for a 2019 Honda CRV, works and saved us a lot of money over getting it at the dealer. Easy to install.
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Reviewed in the United States on December 21, 2024
★★★★★ 1
Did not fit 2018 CRV 2.4L
This did not fit our 2018 CRV 2.4L, at all. Yes u know it's the engine air filter and not the cabin air filter. We replaced them both and this didn't fit. I ordered another one from a different listing and it fit like a glove.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Perfect Fit 2019 Honda CRV
I have a 2019 Honda CRV AWD and this filter fit perfectly. It looks exactly the same as the filter that was previously installed by Honda. I’ll be buying these and installing myself from now on!
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Reviewed in the United States on August 20, 2025
★★★★★ 5
Service
Size: 14-22 2.0L hybrid
Looks like engine air filter, it’s smaller than needed; but needs to be compared. Haven’t looked at air cabin yet
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Reviewed in the United States on May 23, 2026