not enough flow By Dave on 5/22/2015
Dave wouldn't recommend this product to a friend
I don't know how they rate by tank size but GPh would be more helpful. My pump puts out about 6x tank volume per hour and the overflow could not keep up. Had to drain tank rip it out and did a coast to coast overflow out of glass. If going with a high flow sump order 1-2 sizes up.
Works Great By Jeff on 2/4/2015
Jeff would recommend this product to a friend
Arrive in perfect condition. Looks great in tank. Easy to install
Broken Teeth By Ellis Dehee on 11/18/2014
Ellis Dehee wouldn't recommend this product to a friend
Overflow arrived with several teeth broken at the top where they were attached. I'm returning and buying something made from thicker plastic.
Buy next size up By Mike Greene on 8/18/2014
Mike Greene wouldn't recommend this product to a friend
I ended up having to return for the next size larger. The cut out teeth seem to minimize the amount of water the overflow can handle. Just plan to go a size larger and you should be fine.
Restricted Flow By Jon Baxter on 7/8/2014
Jon Baxter wouldn't recommend this product to a friend
I bought the RSS12 for my 75 gallon SPS Reef tank along with a Mag12 (1200 gph) return pump. With a 5 foot head the pump is probably pushing around 900-1000 gph. It was obvious right off the bat that the overflow could not handle the flow. I would recommend buying one size up to compensate for the calculation flaw.
I also wanted to address some of the negative reviews I read on these overflow boxes. The material is not completely rigid but strong enough. I have only had my hands on the Medium size so this may be more of a problem with the larger sizes.
Great product worth the money By AJ on 6/25/2014
AJ would recommend this product to a friend
I purchased the Small overflow for my build. It went on easy and looks great. Wishing i went a little bigger, but i'm excited for the way it will work compared to the HOB overflow i have been using.
Confused about prior reviews By Andrew on 5/30/2014
Andrew would recommend this product to a friend
Not exactly sure about the above reviews. If you will notice, they are all posted on the same day. I ordered this (RSS12) because everything else was out of stock and thought i would take a chance. I am more than happy. It is 3/8" thick black acrylic, not flimsy at all. Nice quality.