Pump Recommendation

[cscultho]

Im ordering my RSR 250 next week and im not sure which size Sicce pump to buy? RSR recommends 660gph so im not sure if i should go with the Sicce 3.5 or 4.0?

Guidance Please....

 

[Vinny Kreyling]

The larger, you can dial it back with a valve but you can NOT get more flow from a pump to small.