The 100mA (0.1A) is a replacement fuse meant to go in your home spa’s PC board. This fuse supplies power to your spa and the rest of its features, so maintaining it is key to the enjoyment of your spa. The slow blow fuse allows more power to flow without overwhelming the circuit.
SpaBoss Prevent II is used to get rid of staining and scaling in your hot tub and prevents it from building up in the first place. Sold in a 16 oz bottle, this liquid is a concentrated and multi-purpose stain and scale treatment that is easy to add to any hot tub.
A spa circuit board is the "brains" behind your spa, controlling jet flow, filtration systems, water temperature, as well as the unit's high-limit sensors. Master Spa Parts offers a number of replacement circuit boards.
SpaBoss pH Stable is the easiest way to keep your hot tub water balanced and under control. By keeping the pH level stable, you won’t need any many other chemicals in the water. Balanced water chemistry prolongs the life of your hot tub and all the working parts that make it enjoyable.