aqua uv advantage

The space between my sump and Aquarium is really small so I’m finding it really hard to find a regular UV sterilizer. Is the aqua uv hang on light good? How would it work if I’m using 2 return pumps now, would I need to decrease the speed of the original return pump? Also should I run the...

Aqua Ultraviolet Advantage 2000 UV Sterilizer (8 Watt) With Hanger Brand New in Box, box had labels on it that have been removed and some marker writing. Unit will come in unopened box. I no longer need it as through my research I found out I'll need bigger more powerful unit for my new...