77707-0252 Combustion Air Blower for Max-E-Therm 333 Natural Gas Pool Heater | Pentair

77707-0252 Combustion Air Blower for Max-E-Therm 333 Natural Gas Pool Heater | Pentair

Marsoni

M251S

$340.00

Get it in 3 business days with 1 day shipping. Friday, May 29

77707-0252 Combustion Air Blower for Max-E-Therm 333 Natural Gas Pool Heater | PentairRestore factory grade combustion performance to your Max E Therm 333 natural gas heater with this genuine OEM Pentair Combustion Air Blower (77707 0252). The blower is responsible for drawing ambient air into the burner assembly at the correct volume and pressure, enabling thorough fuel combustion and efficient heat exchange. When the original blower wears out, heating slows and fuel waste increases. This replacement unit matches all original mounting

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Looks nice. Doesn’t work. This watch does not keep time. You’ll be resetting it constantly, and every time you do, the poorly placed dials end up shifting the date too. The design is impractical. The buttons and dials get bumped during normal, everyday use, which throws everything off again. The date display is also extremely hard to read, especially if you have even minor vision issues. The glow feature? Never worked at all. As for the warranty, don’t count on it. The seller is unreachable, and the listed phone number is out of service. I even purchased an extended warranty, only to find out it’s useless until the original 24-month warranty expires, which you can’t even use in the first place. Bottom line: this is a good-looking piece of junk. Save your money.

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Reviewed in the United States on April 23, 2026