If you've already invested in an EHEIM Classic External Filter, these Wool Filter Pads are going to come in handy.

These lab-tested pads come as a set of three, and they're the ideal way to keep your EHEIM Classic Filter up and running.

• Made in Germany
• Wool filter pads are easy to install in your filter
• Presented as a set of three
• Compatible with EHEIM's Classic 350 External Filter only