Delavan Oil Burner Nozzle, 2.50 x 90BZ w/ Check Valve – 100 PSI by | Jul 25, 2026Delavan Fuel Nozzle, 2.50 x 90BZ w/ Check Valve. This sintered filter is designed to reduce plugged fuel nozzles, eliminate excessive smoking of the burner at start up and reduce soot buildup in the pressure washer coil.
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