As an Amazon Associate, we earn from qualifying purchases. Home » IHP » J3891 FMI #46 Orifice .0810 - NG - J3891 IHP . J3891 Attributes Brand name, Manufacturer name, ManufacturerIHP Extra Product NameFMI #46 Orifice .0810 - NG - J3891 keywordsihp, fmi, firebox, replacement parts, tudor, 46, orifice, .0810, ng, natural, gas, orifice, 104506-24, J3891 moq, multiple, tierMinQty11 MPN, SKUJ3891 snippetReplacement NG #46 orifice .0810 for FMI fireboxes. OEM FMI part # J3891 tierPrice110.00 Distributor offers SellerSKUMOQIn stockMultiplePrices Stove Parts UnlimitedJ3891111 @ $10.00