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(13) Brass replacement screws for the Signature Series 200 / MicroSkim Pond and Surface Skimmer # 43020 and # 99771.To attach Face Plate (29254) and liner to skimmer.Corrosion resistant.
BioBalls™ provide a textured surface area (19 square inches per BioBall™) for beneficial bacteria to colonize and grow. Aquascape BioBalls™ are the ideal filtration media for use in all biological filtration.
Contains 100 balls, and media bag with drawstring.
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