Mazzei Ozone Venturi 684K, Red for medium water flow rates. Ozone systems for spas and hot tubs use a Mazzei type of venturi ozone manifold to draw the ozone gas into the water line with suction. The narrow tube uses internal restriction to speed up the water and create a venturi ozone suction from the center mounted air hose connection, or injection fitting, pulling the ozone gas into the tee manifold. Mazzei venturi injectors are also used in aquariums, agriculture and industrial applications to add gas and liquid additives to water. Inside of the ozone hose connection cap is a ball and spring check valve, to keep water from entering the ozone hose.
Genuine Mazzei 684K venturi injector is RED, and has two 3/4"" ribbed hose barb RB connections and a center hose barb SB connection, fits 1/4"" ozone tubing. Measures 5-7/8"" overall length. PVDF material withstands high pressure and is resistant to chlorine and ozone and acids. Red color, we also have other colors of ozone injectors with threaded ends and 1/2"" hose barb connections.