Micro Beast MB28 Bead Filter without Media Micro-Beast MB28 Bead Filter is suitable for ponds up to 9000 gallons. Simply add up to 150lts K1 Micro Media. The Microbeast Bead Filter is specially engineered for the Koi enthusiast with ponds up to 9000 gallons in size. A pre-plumbed unit which is compact in design, making the MicroBeast an ideal choice for the Koi hobbiest. Microbeast filters are available in three sizes, MB20, MB24 and MB28. The vessels are precision injection moulded for superior strength and dependability. |