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If your Monessen gas fireplace is acting up, this NBK pilot assembly might be the fix.

It's designed for LPG/propane, with a millivolt system.

The model number is 20405, and it's an ODS assembly for vent-free appliances.

Made in China, but it's a solid replacement part.

Works in fireplaces and stoves.

Max pressure is 1/2 PSIG.

California Prop 65 warning applies—pretty normal for gas parts.



5 out of 5