Complete set of knobs for many Master Spa hot tubs (and others using common knobs pictured from Waterway). Replace your cracked or faded controls with a higher quality one!


These are custom made in the USA, 3D printed from ASA plastic. They were designed for extra strength and better grip. They have a snug fit and are easier to remove than the originals. If you need custom sized or different quantity for your hot tub just send me a message and I will try to assist.


Includes: (2) 5" Knobs (1) 3.625" Knob (3) 3.25" Knobs


These are 3D printed, we pride ourselves on high quality products with layer lines barely visable and a nice textured surface on the top. They can be sanded and painted, but look great out of the box and install in no time on your hot tub.





Masterspa Master Spa Twilight 7.2 Diverter Air Control Knob