Anton Sprint Pro Oil Boiler Kit – C03767/S 3-Micron PTFE Filter For Oil Boiler & Oil Burner Flue Gas Analysis Anton's recommended kit for oil boiler testing is the Sprint Pro Oil Boiler Kit (C03767/S), which includes the filter and water trap needed for testing all types of oil-fired boilers and burners with any Anton Sprint Pro flue gas analyser. The 3-micron PTFE oil filter in this kit provides looser, tighter-suited filtration than the standard filter supplied with Sprint Pro analysers, giving greater protection to the pump and sensors against the heavier oil combustion residues generated during oil boiler testing. Although gas appliances produce less residue overall than oil-burning appliances, oil residue is typically heavier and can't be filtered out as effectively by the standard filter used across most of the range — which is why