Overflow box help.

[Deanna bar]

AQUARIUM DUAL OVERFLOW BOX WITH SKIM CUP 1100 GPH
Is that a good rated one or? SAw it on eBay for 65.also what's the difference between the single and dual any better?

http://www.ebay.com/itm/AQUARIUM-DUA...0#ht_628wt_922

[Andrew McFadden]

The dual youll get better gph so it all depends on your return pump gph. i would go with the dual so you have it if you want to do more later.

[Grizz]

Duel are better just because if one gets plugged the other can still feed your return pump keeping it from running dry and burning up