Home Amp. volume problem

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i have a sanyo stereo amplifier JA 2503

When i turn the volume up i get a scratching sound from the speakers.
this is a sign of the Potentiometer wearing out and needs replacing.
problem is iv not seen a Potentiometer like this one before and im having trouble finding a replacment that i can buy from the uk. cna anyone find one that i can use to replace it or recommend an alternative that will work? i have good soldering skills and they way i see it i might as well try to fix it and if i cant i can allways put it in the bin

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this is the part that is used in my amp and i need one of these from the uk.
w.w.w.alibaba.com/product-gs/241289116/Potentiometer_with_Switch.html]Potentiometer with Switch products, buy Potentiometer with Switch products from alibaba.c.o.m

[HayZee518]

go to mouser electronics in texas. they have audio taper pots from IRC that snap together for different functions.