Welcome to the hot tub venturi air controls section of our store.
We have in stock all the various air controllers found in hot tubs and spas here in Europe, they come in several different shapes, sizes, and colors. We also have parts such as replacement caps, handles, and O rings.
Most water jets on your hot tub will have an air pipe and water pipe attached to the back of them and they are designed so that when the water is forced through the jet it produces a sucking action which is called a venturi action. This airline on the back of the jet goes to the bottom of the venturi air controller, when you turn the handle to the on position you are allowing the air to be drawn through to the jet giving you a more powerful air injected waterjet.