With all of the features of the Crossflow Biofill, this new filter also has:
Removable cassettes that hold the media, making cleaning very simple.
New nitrate reducing filter media held in carousels that spin in the water flow, dramatically improving the effectiveness of media. Nitrates are efficiently removed and growth of blanket weed is drastically reduced.
Add a pump to get the Velda Highstream 4500 with a 3 year guarantee.
