Lennox 33J91 is the genuine Lennox 33J9101 LP burner orifice designed to regulate propane fuel flow for proper combustion performance in compatible Lennox gas furnace models. This precision-drilled brass orifice features a .0545 inch opening and 7/16-27 NPT thread size, ensuring the correct BTU delivery and stable flame characteristics when converting or maintaining LP-fired heating systems. Manufactured to Lennox specifications, it supports safe operation, reliable ignition, and consistent heating output during seasonal demand.

Ideal for licensed HVAC technicians performing LP adjustments, replacements, or service, this OEM orifice helps maintain factory efficiency ratings and prevents over-firing or under-firing conditions. Each component is machined from durable brass for corrosion resistance and long-term performance in residential and light commercial applications.

Key details:
• OEM Lennox 33J9101 LP burner orifice
• .0545 inch orifice size for regulated propane fuel flow
• 7/16-27 NPT thread design for secure fitment
• Brass construction for durability and heat resistance
• Supports proper combustion and stable flame performance
• Designed for Lennox propane-fired heating systems

Spesifications: