how long is the blade ? ( pick a point and measure it's total circumference if it is still in a band, or cut it and measure the totaal length, need to know how wide the blade is also, and threads per inch. )
I have gotten a few at HOme Depot that fit my HF band saw ( 64 1/2 X something ) have also ordered off the web, I'll see if I can find the site again
And some industrail supply houses can make a blade for you as well