A fluid flow fitting with a tubular comprising a void therethrough allowing flow of a fluid, a plurality of fins at least partially transverse to the flow of the fluid extending inward from an inner wall of the tubular, and an outlet cap having an outlet hole centered thereon. An ignition source can be placed proximate the outlet cap and/or outlet hole to ignite the combustible fluid. The fins can cause a swirling motion of the combustible fluid, thereby separating contaminants from the combustible fluid and leading to more efficient and clean combustion.