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Pondmaster Pump Diaphragm Kit for AP 60
$54.6  $40.6
Save: 26% off
Solids Handling Pond Pump BOYU SPM-5500D
$278.6  $208.6
Save: 25% off
Solids Handling Pond Pump BOYU SPM-11000D
$418.6  $236.6
Save: 43% off

Sponge Filters

Sponge filters are air-lift filter systems driven by air pumps. The sponge filters provide both mechanical and biological filtrations for aquariums water. They greatly reduce the bubble noises from air pumps.