An air jet includes a body portion defining a hollow main body portion having an interior opening, and a connection portion having an air passageway in communication with the interior opening. The connection portion includes at least one connection port for attachment to a hose carrying pressurized air, and a flange portion defining a recessed mount surface inside a peripheral lip surrounding a recess, with a plurality of open regions defined in the peripheral lip. A nozzle member is fitted into the interior opening and has a nozzle orifice and nozzle tip protruding into the recess, the nozzle opening configured to allow pressurized air to pass from the connection port through the central opening and through the nozzle orifice into the tub hole and the tub.