Pentair Natural Gas to Propane Conversion Kit Model 250 | MasterTemp | 460741
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- SKU:
- 460741
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About This Item
OEM Fuel Conversion Kit for the Pentair MasterTemp 250
The Pentair Natural Gas to Propane Conversion Kit (Part #460741) is the OEM conversion kit for the MasterTemp 250 series pool and spa heater. If your installation site has propane service but the heater was supplied configured for natural gas, this is the factory-correct kit to make that transition — no guesswork, no aftermarket substitutes.
⚠️ IMPORTANT: LICENSED PROFESSIONAL INSTALLATION 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. Fuel type conversion on a gas heater involves the gas valve, orifice, and regulator — improper installation creates a risk of fire, explosion, or carbon monoxide hazard.
⚠️ IMPORTANT: THIS IS A KIT — NOT SOLD WITH THE HEATER
This listing is for the complete conversion kit (includes Item Nos. 3 and 4 per the Pentair exploded diagram). The kit is not included with the MasterTemp 250 heater — it must be ordered separately when a fuel type change is required.
This kit contains the components necessary to convert a MasterTemp 250 heater from natural gas (NG) to liquefied petroleum / propane (LP) operation. The included items replace the gas-specific orifice and regulator components that govern fuel delivery and combustion air ratio, bringing the heater into factory specification for propane fuel. Confirm your heater's current fuel configuration against the data label before ordering — the correct direction of conversion is NG-to-LP only.
Specifications
| Pentair Part Number | 460741 |
| Part Name | NG to Propane Conversion Kit — Model 250 |
| Conversion Direction | Natural Gas (NG) to Liquefied Petroleum / Propane (LP) |
| Kit Contents | Includes Item Nos. 3 and 4 per Pentair exploded diagram |
| Quantity Included | 1 Kit (complete) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | MasterTemp — MasterTemp Series | 250NA | NG to Propane Conversion Kit for Model 250. Not included with heater — order separately. |
| Pentair | MasterTemp — MasterTemp Series | 250LP | NG to Propane Conversion Kit for Model 250. Not included with heater — order separately. |
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
Before ordering, locate the data label affixed to your MasterTemp 250 heater and confirm the current fuel type designation (NG or LP). The heater model number suffix also indicates fuel type: "NA" = Natural Gas; "LP" = Propane. This kit converts NG-configured heaters to LP — it does not work in reverse. Have your licensed technician reference the MasterTemp installation manual's fuel conversion procedure, which specifies the correct orifice torque values and post-conversion leak-check protocol required before the heater is returned to service.
