By nick hawkins from harrison, mi on November 25, 2012
Does this have an internal or external pump?
By Customer Service on December 3, 2012
The CPF-4000 pond filter does not include a pump, as stated in the item description. However, we recommend purchasing the CQP-9000 pump to our customers: http://www.truaqua.com/submersible-pond-pump-cqp-9000.html. It meets the capacity of the CPF-4000 while offering year-round reliability.