Venturi Gas and Air Mixer For Propane Tube Burner 3/4" NPT Output - w/ 1/8" NPT Input (3/8"  Flange x 1/8" NPT Orifice Included)

These are used for build your own customized tube burner for your Hog Scalder, Grill, Smoker, Smokehouse, Fish Cooker, Syrup Cooker, and many other uses.