Add-On Cartridge for Lifegard Aquatics All-in-One® Pond Filter Systems
Add-On Cartridge for Lifegard Aquatics All-in-One® Pond Filter Systems
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This add-on cartridge for Lifegard Aquatics All-in-One® Pond Filter Systems will increase the filter capacity by adding an additional filtration layer.

NOTE:   The foam filters ARE included, but you will also need a new locking assembly as the one you have now will not fit over two filter chambers. 
Please notice carefully the purchase options and choose the one that is right for you.