Hello Chris
There are 2 different models of Wavy Sea.
The regular Wavy Sea can handle flow up to 2300 gph
The Wavy Sea plus version can handle up to 3600 gph
Usualy peductors are used with pressure rated pumps ,therefore the manufacturer recomends to only use Wavy Sea plus with penductors ,so the extra stress of higher flow on the unit ,will not damage it.
I hope this answer your questions ..I can see you are in Alberta ,you can contact albert @ golds aquarium if you need any assistance ,they do have them in stock & he is very knowledgable or you can contact us @ proline with any further questions.
Regards ,Proline
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