The 5000 series protein skimmers have been developed for larger aquaria. Just like the smaller models, they feature venturi pumps (Ocean Runner 3500) which include a patented needle wheel for optimal mixing of the air and water. The reaction cylinder has a diameter of 200 mm (c. 8 inches). Above the cylinder, the patented conical foam cup improves the production of foam. The inlets and outlets of the skimmer are designed to ensure an extensive contact time for the air bubbles within the counter-current. To supply the skimmer with water, a separate pump with a capacity of 2000 - 4000 litres per hour (500 - 1000 gph), e.g. Ocean Runner 3500, is needed. Versions of Turboflotor 5000: - T. 5000 Baby: Outlet height 80 cm / 32". Total height 118 cm / 48". Capacity up to 500 gallons. Venturi pumps 1 Ocean Runner 3500. - T. 5000 Single: Outlet height 155 cm / 63". Total height 193 cm / 78". Capacity up to 1000 gallons. Venturi pumps 1 Ocean Runner 3500. - T. 5000 Twin Outlet height 155 cm / 63". Total height 193 cm / 78". Capacity up to 1250 gallons. Venturi pumps 2 Ocean Runner 3500.