Cloverleaf Genesis II 9000 Koi Pond Filter Ref: G2/5 Size 3100 x 620 x 860mm high. This unit will cater for Koi ponds up to 4,500 gallons (20,250 litres) or Goldfish ponds up to 9,000 gallons (40,500 litres). Concept of design is generally all as specified for the "CL" range. This superb filter will also have a special appeal to those who feel constrained by the filtration mediums available in standard 4 bay units. Bay 1 - Vortex. Bay 2 - Brushes. Bay 3 - Japanese Matting. Bay 4 - Flocore. Bay 5 - Aquarock with multi layer foam protection. Note:- Pipe inlet size 110mm (4") - Outlet 110mm (4") Price: £1,721.99 (Including VAT at 20%)