Penn Plax Bubble-Wall Air Diffusers for Aquariums produce a spectacular wall of bubbles. These diffusers create a dramatic mist of healthy bubbles along the entire length. Simply connect your air pump (not included) and the Bubble-Wall will evenly distribute fine bubbles through a super-porous, non-clogging wand. The tough material is made to stand up to continual use. Additional Bubble-Wall diffusers can be joined using the enclosed connector to create almost any length and each can be cut with a razor blade to divide or shorten.
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