This is the replacement orifice for compatible Enviro gas appliances, sized specifically to meter gas flow into the burner. The Enviro 50-343 (part 50-343) replaces the worn or incorrect orifice component in compatible Enviro gas fireplaces.

Key Benefits

• Supports correct, stable combustion at the burner
• Genuine Enviro part made to factory specification
• Helps maintain proper gas metering for safe operation
• Direct-fit sizing — no substitution guesswork

Purpose

The orifice controls the amount of gas delivered to the burner, which directly affects flame quality and combustion performance in the appliance's gas system.

Other Notes

Gas metering issues should never be worked around or bypassed. If flame quality seems off after installation, have a licensed gas technician inspect the burner and gas valve assembly, and confirm the work follows local codes.

When replacing this orifice, it is worth having a technician also check the associated gas valve and burner assembly for wear, since these components work together to regulate flame and heat output.

Not sure it fits your unit? Contact us with your model number and we'll confirm before you order.