Here is the BK400ext and the homemade Reeflo pump with custom skimmer body... What is the different between my BK and reeflo? Not a darn thing... I think the performance is the same just the quality and electrical usage is a bit different.
I rather spend $200 to replace the reeflo dart NW then $1400 for the red dragon....
BK400ext with red dragon 2500
You see pic of both skimmer... It is up to you to pick what you like...