Matala Filter Brushes for Skimmers or Filters Size:13" Brush The bacterial species included in

The bacterial species included in SST are recognized by the Centers for Disease Control and Prevention (CDC) and the American Type Culture Collection (ATCC) as Biosafety Level 1 bacteria

Safe for fish

Last indefinitely and has no effect on water quality

000 Gallons 4200gph 125lb 21" x 34

Optional lids are available for the Evolution Aqua Nexus™ 220 and Nexus™ 320 filters

Matala Filter Brushes for Skimmers or Filters Size:13" Brush The bacterial species included inMatala Filter Brushes are an excellent choice for pond skimmers and biological filters. The individual filter bristles are spiral wound to give a higher surface area and provides ultimate strength. Matala filter brushes do not sag or droop over time, like inferior brands. On the top of each brush is a support ring with which to attach the brush to your filter chamber. Model Brush Dimensions Overall Length FB13 4" Diameter x 13" Long 17" FB23 4"