F2AL fuse... why and where to get?

Is there anything special about an F2AL fuse? I just repaired a pair of m-audio monitors which blew one of these fuses and it says to replace only with F2AL... Whats the harm of putting in a normal 2A fuse?
If there is anything special about them, where are they available? Cant seem to find them anywhere.
thanks!

F=(usually) Quick-blow.
T=Slow-blow.

Put a T in there, and things can suffer a bit of damage if there IS a problem, because the fuse leaves power applied for rather longer.

What I can't fathom is the (I think it's a US code) designations that go GMA/GMD/GDC... I do however find it easy to remember "F=Fast, T=Trage".

Keith

[quote author="SSLtech"]F=(usually) Quick-blow.
T=Slow-blow.

Put a T in there, and things can suffer a bit of damage if there IS a problem, because the fuse leaves power applied for rather longer.

What I can't fathom is the (I think it's a US code) designations that go GMA/GMD/GDC... I do however find it easy to remember "F=Fast, T=Trage".

Keith[/quote]
GDA Cooper Bussman quick acting 5MM x 20MM ceramic fuses
GDB Cooper Bussman quick acting 5MM x 20MM glass fuses
GDC Cooper Bussman Time Lag =slow blow 5MM x 20MM glass fuses
GMA Cooper Bussman fast acting 5MM x 20MM glass fuses
GMC Cooper Bussman Time delay =slow blow 5MM x 20MM glass fuses
GMD Cooper Bussman Time delay =slow blow 5MM x 20MM glass fuse
According to... http://www.kenselectronics.com/lists/fuses.htm

so this is just an ordinary 2A 250V fast blow?

[quote author="dustbro"]so this is just an ordinary 2A 250V fast blow?[/quote]
Yes.
F=Fast(quick) acting - Flink
FF=Superfast acting - Superflink (rare birds)
M=Medium time lag - Mittelträge
T=Time lag - Träge
followed by rating
L=Low breaking capacity

Thanks! So I need:
Fast acting
low breaking capacity
2A
250V