My old canister filter has started sounding like an airliner in low altitude lately.... Checked with my fishstore, and they're not able to get a new rotor, out of production. Now I'm hoping someone has one, in a shelf somewhere. Filter is type 2017, pump 1017 Part # 76 3355 0 - 50HZ or Part # 76 3357 0 - 50HZ 50 HZ is European standard I think.