I bought a ReefSavvy 21" ghost overflowthat flows 2000 gph for a new aquarium build I'm doing. Of course, my plans changed. It's brand new and was never installed. ReefSavvy doesn't accept returns, so my loss your gain. To get all the info on the overflow, Google: "reef savvy ghost overflow 21". It took about 2 months for them to build & ship it. Asking $270 Free shipping, no tax, no wait.