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.
Have you worn out your Down East 2 Pump Overlay? Master Spa Parts offers an OEM replacement adhesive decal for Down East Spas. This is the same decal that originally came with your Down East Spas hot tub!