Reef Tank Filtration Without the Sump: Tunze Comline Filter / Multifilter | You don't need a sump for your saltwater tank just to have an effective filter. Try the Tunze Comline Filters
Comline 3162 filter.
TUNZE - Comline® Streamfilter 3162
Comline® Filter 3162 | MOIA.cz
Tunze Comline Reefpack 250
Tunze Comline 3161 Nano Filter | Reef Builders | The Reef and Saltwater Aquarium Blog