What's the worlds largest citrus fruit?

The pomelo or Citrus maxima , is the largest citrus fruit from the Rutaceae family. It is a natural (non-hybrid) citrus fruit, similar in appearance to a large grapefruit, native to South and Southeast Asia. The popular fruit is used in many Chinese festive celebrations throughout Southeast Asia. It is a large citrus fruit, 15–25 centimetres (5.9–9.8 in) in diameter, usually weighing 1–2 kilograms (2.2–4.4 lb).