{"product_id":"oem-lennox-103623-06-gas-burner-orifice-nat-0935-18k21","title":"OEM Lennox 103623-06 Gas Burner Orifice Nat (.0935) — 18K21","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 18K21\u003c\/strong\u003e (OEM part 103623-06) is a genuine natural gas burner orifice with a .0935 drill size, precision-manufactured to control the gas flow rate entering the burner in compatible Lennox furnace models. A damaged or obstructed orifice can cause symptoms such as rough ignition, yellow-tipped flames, carbon buildup, or poor heating efficiency. Replacing it with this authentic Lennox OEM part guarantees the correct gas-to-air ratio and safe, consistent burner performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081045197171,"sku":"LNX-18K21","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-103623-06-gas-burner-orifice-nat-0935-18k21","provider":"National HVAC Parts","version":"1.0","type":"link"}