Your home spa is most relaxing when all of its parts are working just as they should. That’s why it is so important to maintain your spa by regularly replacing outdated or aging parts. The 20 Amp Fuse by Master Spas is an exact replacement part for your spa’s original 20 amp fuses. This particular fuse is located in your spa’s PC board and supplies power to the rest of your hot tub and its features. To fully enjoy your home spa and all of its benefits, it is a good idea to replace any broken, malfunctioning or outdated fuses.