The 20 Amp Fuse for Standard Propulsion by Master Spas is a replacement fuse made to go in your home spa. Replacing this fuse ensures that your spa’s PC board operates properly, allowing all of your spa's features to continue to work. The piece is small, affordable and easy to install.
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.