I recently contacted Aquatop about a 4 motnh old filter that quit working. They have been kind enough to send me a new filter free of charge since I sent them a copy of my receipt and a pic of it. They were also nice enough to let me keep the non working filter to use for parts and suggested that maybe I could find a new barrelhead for the top of it and use the remaining canister to rebuild another one with a working motor. Does anyone have suggestions on where to find a new motor/barrelhead for one?