Ecological Laboratories 32 oz PL, Algaway 5.4, & Barley Straw Extract Bundle spout Flow through filters with biological Size:FITS 33" SQ (84 CM) ATDS73962 LED male thread adapter and

Flow through filters with biological and mechanical filtration clean and clear pond water which flows back down to the pond by gravity

Drawstring top with push button release keep the top closed around the pump yet makes for easy pump removal

Improves tolerance to temperature fluctuations

Oxidizes both ammonia and nitrite

DuraLiner ™ 45 mil EPDM rubber liner

Ecological Laboratories 32 oz PL, Algaway 5.4, & Barley Straw Extract Bundle spout Flow through filters with biological Size:FITS 33" SQ (84 CM) ATDS73962 LED male thread adapter and Flow through filters with biological and mechanical filtration clean and clear pond water which flows back down to the pond by gravity Drawstring top with push button release keep the top closed around the pump yet makes for easy pump removal