The skimmer must be supplied with water either by gravity feed from the aquarium or via a separate pump. The European AP902 is fitted with 2 Eheim pumps each drawing in 600lts of air per hour giving a total of 1,200lts/hour. This is less than for the 702 due to the resistance of the extra head of water in the longer tube however the contact time is longer.
Heavy Stocking 1800 Ltrs (400 gals). Normal Stocking 2500 Ltrs (550 gals) 3000 Ltr./ h (667 gall/h) .L: 620mm W: 340mm H: 980mm