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Summerset Natural Gas Main Valve Orifice for Sizzler Pro Grills | MVO-SIZPRO-NG

Summerset Natural Gas Main Valve Orifice for Sizzler Pro Grills | MVO-SIZPRO-NG

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Summerset Natural Gas Main Valve Orifice for Sizzler Pro Grills | MVO-SIZPRO-NG
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The Summerset MVO-SIZPRO-NG is the natural gas main valve orifice for pre-2025 Sizzler Pro grills. It is the small jet at the main burner valve that meters gas into the burner, sized for natural gas only.

Natural gasNG orifice size only
Sizzler ProPre-2025 SIZPRO grills
Main burnersNot the IR back burner
Small partSwap with the gas off

Details

Part numberMVO-SIZPRO-NG
PartMain valve orifice
FuelNatural gas
FitsSummerset Sizzler Pro natural gas grills, pre-2025 (SIZPRO32, SIZPRO40)
Main valves per grill4 on the 32", 5 on the 40" (2019 Sizzler Pro manual)
NG regulator setting4.0" water column (2019 Sizzler Pro manual)
Not forPropane grills, standard Sizzler grills, the IR back burner
Propane versionMVO-SIZPRO-LP, listed separately
BrandSummerset
Natural gas only. Match the part to the fuel on your rating plate.Summerset tunes the orifices and regulator to the gas listed on the rating plate. Have a licensed gas professional install gas parts, then leak test every connection with soapy water before lighting.

Questions people ask us

Which grills does this orifice fit?

It is listed for Summerset Sizzler Pro natural gas grills, the pre-2025 SIZPRO32 and SIZPRO40. The 2019 Sizzler Pro manual shows 4 main valves on the 32 inch and 5 on the 40 inch.

Will it fit a standard Sizzler?

Standard Sizzler grills have their own orifice listing, MVO-SIZ-NG. Check which series your grill is before you order.

Can I use it to convert my grill to propane?

No. This is the natural gas size. Propane grills use MVO-SIZPRO-LP. Summerset notes that changing fuel needs a conversion kit and may need more than orifices, so have a gas professional handle any conversion.

What about a 2025 or newer Sizzler Pro (SZRPRO)?

The current Sizzler Pro manual for the SZRPRO32 and SZRPRO40 lists its own numbered main valve orifices. Send us your model and serial and we will check which one your grill takes. Ask us here.

Not sure this is the right orifice?

Send us the model and serial number from the rating plate on your grill, plus a photo of the old part if you have it out, and we will check it before you order. Ask us here.

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Manuals and warranty

Summerset manuals and warranty

Warranty terms come from Summerset and depend on the product. Read the manual and the warranty for your model before you order.

Our warranty library
Not sure this is the right orifice? Send us your grill model and serial number and a photo of the old part, and we will check the match before you order. No obligation either way.
Ask us before you order