Summerset Main Valve Orifice, Propane, for Sizzler Grills | MVO-SIZ-LP

The Summerset MVO-SIZ-LP is the propane main valve orifice for Summerset Sizzler grills. It sits at the main burner valve and meters propane into the main burner. Replace it when the original is damaged, blocked or missing.

At a glance

• Propane only: Not for natural gas grills
• Sizzler grills: Main burner valves
• One per main valve: Count your main burners
• MVO-SIZ-LP: Fuel-specific gas part

Details

Part number MVO-SIZ-LP Part Main valve orifice Fuel Liquid propane (LP) only Fits Summerset Sizzler grills, main burner valves Main valves per grill SIZ26: 3, SIZ32: 4, SIZ40: 5 (2019 Sizzler manual) Propane pressure LP regulator set to 11" w.c. (2019 Sizzler manual) Natural gas version MVO-SIZ-NG Sizzler Pro version MVO-SIZPRO-LP Not for Natural gas grills or back burner positions Brand Summerset

Match the fuel and the grill series before you order. A propane orifice must only go on a propane Sizzler. Have a licensed gas technician handle gas work and leak-test every connection with soapy water, never a flame.

Questions people ask us

How many orifices does my Sizzler need?

Summerset's parts lists show one main valve orifice for each main valve. The 2019 Sizzler manual lists 3 main valves on the SIZ26, 4 on the SIZ32 and 5 on the SIZ40. Order the number you are replacing.

Will this fit a Sizzler Pro?

Sizzler Pro grills have their own listed propane orifice, MVO-SIZPRO-LP. Check the model on the rating plate before you order.

Can I use these to convert a natural gas Sizzler to propane?

Not on their own. Summerset says changing gas type requires a conversion kit, that the regulator and orifices are tuned for the gas on the rating plate, and that a conversion may need parts not supplied with the grill. Talk to a licensed gas technician first.

Not sure which orifice your grill takes?

Send us the model and serial number from the rating plate and we will confirm the part. Ask us here.