Has the ball in your air control become stuck, or has it started to “whistle?” It is most likely time to replace it. Master Spa Parts has the perfect replacement part for you. The 1-Inch, MG Air Control w/ Blower Assist Tee is compatible with spas and hot tubs that accept a one-inch air control.
General use 5/16 SS Washer from Master Spa Parts. This unit goes underneath fasteners on your spa/hot tub to keep components of your propulsion system intact.