| Return shipping will be paid by | Buyer |
|---|---|
| All returns accepted | Returns Accepted |
| Item must be returned within | 30 Days |
| Refund will be given as | Money back or replacement (buyer's choice) |
| Brand | Waterway |
| Type | Venturi Air Control |
Check the listing for details. Hot Tub Basics | Spa Air Control Valve 660-3570 White. Condition: New. Listed at 25.99 USD. Air Control Valve Plumbing Size 1" Hole Size 1-5/8" Face Diameter 2-3/4" Face Style Notched Color White Many hot tubs, spas and baths use venturi air controls for injecting bubbles into the jet/water stream. These control valves draw ambient air into the water stream through a special fitting called a venturi. The pressure of the water going through the jets allow air to be drawn in and then mixed with the water to create bubbles. These fittings allow one to have the added plus of bubbles in the jet stream with out the need for forced air from a dedicated air blower.