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the air restrictor plate must be installed when converting to LP to ensure safe operation and prevent burner damage
the copper sensing bulb is suitable for air or liquid immersion
The VB-3966-1 is specifically rated for hot and cold water service
utilizing this OEM Laars replacement part is the only way to ensure the unit remains within its original safety and performance specifications
Crown Engineering 35199 Midco Electrode 318518-761 the air restrictor plate mustThe Crown Engineering 35199 Midco Electrode is a critical ignition component engineered for high performance Midco J3 burner systems and industrial maintenance applications. This electrode, frequently cross referenced as Midco part number 6418 00 or 17010, features a 7 16 inch porcelain diameter and a 3 5 8 inch porcelain length to ensure precise spark gaps and reliable HVAC ignition. Designed to withstand rigorous thermal stress in commercial heating