Apex koi bio box moving bed filter this is a great addition to any pond comes with the media for a moving bed
Also has a locking lid and a fixed air line for the moving bed
Apex koi have a web site for these so if you need more information it’s on there
Size wise it’s a cube and 45cm in all sizes
Unfortunately due to size and weight it’s collection only
Please check out my other koi bits on eBay