Pentair Air Orifice Kit for MasterTemp 200 | 77707-0111
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- SKU:
- 77707-0111
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About This Item
The Pentair Air Orifice Kit (77707-0111) is the OEM replacement air orifice assembly for the MasterTemp 200 gas heater. This kit is sized specifically for the 200,000 BTU model — it is not interchangeable with other MasterTemp sizes.
⚠️ IMPORTANT: LICENSED TECHNICIAN REQUIRED
Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high-voltage components without proper certification.
The air orifice controls the air-to-gas ratio entering the burner assembly of the MasterTemp 200 heater. A damaged, corroded, or incorrectly sized orifice disrupts combustion, leading to ignition failures, incomplete combustion, or nuisance lockouts. Replacing this kit restores the factory-calibrated air flow path and is a required service step when the burner assembly is being rebuilt or inspected.
Specifications
| Pentair Part Number | 77707-0111 |
| Kit Contents | Orifice, hoses and screws |
| Compatible Model | MasterTemp 200 only (200NA and 200LP) |
| Quantity Included | Kit |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | MasterTemp 200 (Natural Gas) | 200NA | Air Orifice Kit for 200 Model Only |
| Pentair | MasterTemp 200 (Liquid Propane) | 200LP | Air Orifice Kit for 200 Model Only |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
This kit is sized exclusively for the MasterTemp 200 — the 250, 300, 333, 400, and 460 models use different orifice kits and are not interchangeable. Before ordering, confirm your heater's model number on the rating label affixed to the unit. If your heater is experiencing ignition lockouts or rough combustion, have a licensed technician inspect the orifice and burner tray together — orifice wear rarely occurs in isolation.
