Blue Diamond EPDM Round Air Diffuser DISC | 2 Sizes Size:12 in. an aerator adds oxygen and

an aerator adds oxygen and helps to circulate water

with a removable intake screen for conversion to true 1 1⁄4" solids handling capacity

these floats are resistant to UV and degradation from the elements

the Pondmaster Proline Waterfall Biofilter provides beneficial biological filtration

Blue Diamond EPDM Round Air Diffuser DISC | 2 Sizes Size:12 in. an aerator adds oxygen andBlue Diamond's EPDM Flexible Membrane Disc Diffuser provides high dissolved oxygen levels, perfectly suited for use in hydroponics, fish tanks, koi ponds, as well as lakes. This heavy duty diffuser is clog resistant and the hundreds of slots in the membrane provide excellent uniform bubble distribution.