It will fit but the results may not be to your liking. Also, you will need to purchase another basket if you don't have one. What problems you may have would be related to the flow through the filter. The motors are designed for the optimum flow and contact time with the filter media for optimum results. Adding an extra basket with additional media and the motor may not be able to pull the water through the basket at the speed necessary for the best results. I do know users that have done this and had excellent results while others have been dissatisfied. If you do this you also void the warranty and there would no returns.