Cloverleaf Compact 2000 Koi Pond Filter Ref: VH3/1 A superb and under rated filter the VH3/1 is suitable for Koi ponds of 1,000 gallons (4,500 litres), or Goldfish ponds up to 2,000 gallons (9,000 litres). Size is 620mm diameter x 860mm high. This unit really would make a wonderful filter if hooked up to a surface skimmer in a large pond. Note:- Pipe inlet size 110mm (4") - Outlet 82mm (3"). Price: £350.48 (Including VAT at 20%)