Pentair Gas Orifice Kit – Propane for MasterTemp Series | 460740
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- SKU:
- 460740
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About This Item
OEM Propane Gas Orifice Kit for the Pentair MasterTemp 250LP
The Pentair Gas Orifice Kit – Propane (460740) is the OEM replacement orifice kit for the MasterTemp 250LP liquid propane heater. This kit supplies the correctly sized orifice components to restore proper fuel metering and combustion performance to your MasterTemp 250LP.
⚠️ IMPORTANT: KIT CONTENTS — TWO COMPONENTS INCLUDED
This listing is a kit containing brass orifice and o-ring from the MasterTemp 250LP exploded diagram — not a single orifice. Confirm both item numbers are required for your service before ordering.
⚠️ IMPORTANT: LICENSED PROFESSIONAL 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 gas orifice controls the flow rate of liquid propane into the burner assembly. An orifice that is worn, damaged, or incorrectly sized will result in improper combustion — presenting as weak flame, ignition failure, or inefficient heating output. This kit is not included with the heater at time of manufacture and must be ordered separately when replacement is required.
Specifications
| Pentair Part Number | 460740 |
| Part Name | Gas Orifice Kit – Propane, Model 250 |
| Fuel Type | Liquid Propane (LP) |
| Kit Contents | Brass orifice and o-ring (per MasterTemp 250LP exploded diagram) |
| Quantity Included | Kit (Each) |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | MasterTemp — MasterTemp Series | 250LP | Gas Orifice Kit – Propane 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
This kit is propane-specific — it is not interchangeable with the natural gas orifice kit for the MasterTemp 250. Before ordering, confirm your heater's fuel type on the rating label affixed to the unit. The fuel type designation (LP or NG) is also printed on the heater's model identification plate. Ordering the wrong orifice for your fuel type is a safety risk and will result in improper combustion.
