{"product_id":"oem-lennox-103188-04-gas-burner-orifice-nat-0740-18h77","title":"OEM Lennox 103188-04 Gas Burner Orifice Nat (.0740) — 18H77","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 18H77\u003c\/strong\u003e (OEM part 103188-04) is a factory-original natural gas burner orifice with a precision .0740 drill size, designed to meter the exact volume of natural gas required for safe and efficient combustion in compatible Lennox furnace applications. Common indicators of a failing or blocked orifice include weak or uneven flames, increased heating bills, sooting, or the furnace failing to reach the desired temperature. Choosing this genuine Lennox OEM 18H77 orifice guarantees a proper fit, correct gas flow calibration, and long-lasting burner performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081045262707,"sku":"LNX-18H77","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-103188-04-gas-burner-orifice-nat-0740-18h77","provider":"National HVAC Parts","version":"1.0","type":"link"}