PondXpert Easyfilter 4500, Руководство по установке и обслуживанию

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Filter Foams
Inside the filter you will find a layer of two
filter foams in the order shown here;
black to blue.
Always make sure that they are replaced
in the same order.
There is a plastic tray to the bottom of the
unit which protects the biological media
and allows drainage of the filter foams.