If you see rust forming around the burner on your Pentair MasterTemp 400, you should check your heater's Flameholder. If your MasterTemp fills with debris occasionally, its likely that your Flameholder is struggling to function.
Who is this for?
Pool owners search for this specific replacement heater part due to issues related to ignition or the rust and debris that can accumulate on the Flameholder. It is highly recommended to change the combustion chamber gasket, with the Flameholder, since both parts sit in the same commonly corroded area.
*Always confirm the model of your product for compatibility before ordering any part. Please call Shasta Pool Supply if you are not sure and we will be happy to help.*

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Key Features
- Restores stable, well-distributed flame to the MasterTemp 400 and Max-E-Therm 400 burner
- Complete kit forms an airtight, secure burner assembly
- Includes flameholder insert, clamp assembly, O-ring, and silicone tube
- OEM part engineered to match original 400K BTU performance
Technical Specifications
- BTU rating: 400,000
- Compatibility: MasterTemp 400, Sta-Rite Max-E-Therm 400
- Includes: Flameholder insert, clamp assembly, O-ring, silicone tube
- Warranty: 1 year
Specs
- Part Number: 77707-0204
- Manufacturer: Pentair
Pro Tip: Pentair Service Kit Flameholder 77707-0204
It is very common to need to change the combustion chamber gasket kit. Confirm your model with Shasta Pool Supply before purchase.
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What our customers are saying
Outstanding experience. My order was confirmed and shipped the same day. The part was a factory sealed Pentair part and was exactly as specified.
Outstanding experience. My order was confirmed and shipped the same day. The part was a factory sealed Pentair part and was exactly as specified.
Matt S
Easy to order on line and then pick up at my requested location
Easy to order on line and then pick up at my requested location
Debra J
My heater arrived undamaged and was securely shipped on a crate. The product was exactly what I needed to remove the old unit and install the new unit. Thank you!
My heater arrived undamaged and was securely shipped on a crate. The product was exactly what I needed to remove the old unit and install the new unit. Thank you!
Samuel S.
FAQ
Our expert staff answers customer's most asked questions.
Is this an OEM part?
Yes this part is original, from the manufacturer, and contains a manufacturer part number.
Is installation simple?
Pentair makes it easy to install their replacement equipment, with numerous guides and videos available online.
Does this part come with any warranty?
Replacement parts do not come with a warranty, although many of our complete equipment comes with a full manufacturer warranty.
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