| These fuse holders should only be used inside the car. They are not moisture proof. They can handle up to a 20 amp circuit without any problem, but we prefer to use this style on the 10 amp and under circuits. We do have a heavier duty interior inline fuse holder available that we recommend using on the 20 amp and above circuits. You cut the wire in the middle and then splice it into the circuit that you need. They use the barrel type fuse with the sight glass. Last updated 12/08 | 
