If you happen to be in an agricultural area, grain vacs use similar (but maybe a bit heavier) hose and long lengths of it get replaced when damaged. I.D. sizes vary by size of vac, and brand.
Perhaps you could advertise on Craig's or ask around at a grain elevator or feed mill for a length that is useless for it's original purpose, but would have a short section usable for your needs. Looks like the piece in the photo is darned near used up!