This is the shortest of the AP skimmers and is designed to fit in many of the older type cabinets which tend to have a reduced height.
The picture shown is for an AP600 which is slightly higher.
All AP525 skimmers are now fitted with an Aquabee pump.
The skimmer must be supplied with water either by gravity feed from the aquarium or via a separate pump.
The European AP525 is fitted with 1 pump drawing in 350lts of air per hour.
Please allow 7-10 working days for delivery.