Pre-Order Klir Filters Now! Say Goodbye to Filter Socks!

[SaltwaterAq]

4" Klir Filter - No More Washing Socks!​

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Enjoy maintenance-free aquarium filtration for months at a time. The Klir filter is a direct replacement for filter socks on sumps with sock trays.

Klir Filter automatically unrolls new filtering material, removing suspended particles from your aquarium and producing crystal clear water.

Check it Out! - https://www.saltwateraquarium.com/klir-fleece-roller-filter-di-4-4-filter-sock-klir/​

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[reefteaser]

Will this fit into a Emerald 39 sump? If so, will a second one fit, or is that even necessary?
Seems like a nice improvement from previous designs.