Reef Octopus OCTO Regal 150 SSS Space Saver Protein Skimmer For aquariums up to 210 gallons with a light filtration demand. For aquariums up to 160 gallons with a medium filtration demand. For aquariums up to 100 gallons with a high filtration demand Small Footprint: 9" x 7.5", Body Diameter: 6", Height: 23.6" Reef Octopus Controllable DC 2500S Pinwheel Pump. Latest in DC controllable technology. Pump has 5 controllable energy efficient power settings Output Size: 40mm - Comes with metric to British adapter to 1.25 pvc ; Output Height: 9.1" Recommended Sump Water Depth: 7" to 8.5"