Brand new MultiCyclone MC12 - 1.5" /50mm (Pools up to 55m3). 

Purchasing, opened but never used as have changed direction.

"Waterco’s award winning MultiCyclone MC12 is a brilliant pre-filtration device that works on the basis of centrifugal water filtration and is designed with no moving parts and no filter media to clean or replace."

Great for pools of ponds.