A seller on ebay right now is selling 24 vertex style dosing pumps heads and motors. They are all mounted to an aluminum rack. The buy it now price is 240 plus 20 to ship from Florida. I want to buy it but obviously I don't need 24. I was wondering maybe we could get a couple people to all go in on it. The pumps could be used for many aquarium tasks and all they need is a 24volt source. I emailed for more specs on the pump earlier today.