small brass disc part with rubber ring placed below printed instructional sheet with yellow label marked natural gas conversion kit
small round brass component with central hole and black rubber gasket around its edge marked VN

Pentair Propane to Natural Gas Conversion Kit Model 200 | MasterTemp | 77707-1431

Regular price$61.99
/
$9.99 flat shipping on orders under $100.
Genuine Pentair OEM Part Guaranteed Authentic
Pentair Authorized Dealer Full Manufacturer Warranty Support
No Hassle Returns 30 Days Paid Returns
SKU:
77707-1431
  • Poolaroo Promise

    • Fast Shipping — Ships in 1–2 Business Days
    • 30-Day Risk-Free Returns — We Pay Return Shipping, No Restocking Fees
    • Powered By People Who Care - No Faceless Conglomerate

About This Item

The Pentair Propane to Natural Gas Conversion Kit (77707-1431) is the OEM replacement conversion kit for the MasterTemp 200LP pool and spa heater, enabling a permanent fuel-source changeover from propane (LP) to natural gas (NG).

IMPORTANT: KIT INCLUDES MULTIPLE COMPONENTS
This listing is for the complete conversion kit (Key Nos. 3 and 4 per the MasterTemp 200 exploded diagram). Confirm both components are required before ordering — do not order individual parts separately if the full kit is needed.

IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED
This kit involves modification of a gas-fired appliance. 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.

This kit provides all necessary OEM components to convert the MasterTemp 200LP from propane to natural gas operation. The conversion changes the fuel orifice and related components to match natural gas supply pressure and combustion requirements. Installing incorrect orifice components on a gas heater creates a serious safety hazard — use only the OEM kit matched to your specific heater model.

Specifications

Pentair Part Number 77707-1431
Part Name Propane to Natural Gas Conversion Kit — Model 200
Kit Contents Includes Key Nos. 3 and 4 (per MasterTemp 200 exploded diagram)
Conversion Direction Propane (LP) to Natural Gas (NG)
Quantity 1 Kit
Sub-Category Heater & Heat Pump Parts — Conversion Kits

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair MasterTemp 200LP Propane to NG Conversion Kit for 200 Model. 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.

Poolaroo Pro Tip

Before ordering, confirm your MasterTemp is the LP (propane) model — the model number plate on the heater will show "200LP." The natural gas equivalent unit (200NG) does not require this kit. After conversion, a licensed technician must verify gas supply pressure, burner operation, and leak-test all connections before returning the heater to service. Keep the original LP orifice components in case documentation is needed for future service records.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Format: you@example.com

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

Recently viewed