Audio Grade fuses


I dont know much about the fuses, so I need a little help.
I have been reading a lot about the Isoclean audio grade fuses, so I looked at my Myryad amp fuses which says "T3. 15A" But I couldnt find the same number on the Isoclean fuse website.

All they have are Sizes: 5 x 20mm (.2" x .79") 1A, 1.6A, 2A, 2.5A, 3A, 4A, 5A, 6.3A, 8A, 10A...But my original fuses are also in 5x20mm, but it is rated at 15A, so would I be able to replace them with the Isoclean?
thanaphan
I turned a friend on to these fuses and he has called me three times to thank me. He has a Wadia 861se w/GNSC mod/Spectral/Eidolon/MIT system. I'm now trying to turn him onto Critical Mass stands.
Wires are now being bused too much for their snake oil hype.
Now's the time for fuses.
Isoclean does indeed have a 15 amp fuse in standard fuse size. I am a firm believer in what these can do to a power amp or a pre-amp. I have bought 4 so far.The last fuse the 15 amp one is going to go in a Foundation Research LC2 line conditioner/power chord that goes to my pre-amp.I have another stock fused LC2 that I will switch in and out and see if my panel of experts can hear a difference when used in this manner.In an amp there is a difference and if you can't hear the difference the fuse makes in your power amp then don't bother changing anything else in your system as I doubt you would hear a difference with any other new components.