Most everything that you need to repair a whirlpool tub or airbath is available on line. It is important to find a supplier that can also answer your questions in addition to having good prices. If you can purchase from the original manufacturer of the bathtub that is a good place to start but often the prices are a lot higher then other 3rd party parts suppliers. I have had pretty good luck with the Therapy Bath Store and on Ebay, although Ebay is not good if you don’t know exactly what you are looking for. I have purchased this universal pump replacement package several times due to the free air switch, hose and unions that I otherwise end up buying most of the time anyway. You can check it out at the link I provided below.