Instantly converts one aquarium into two - allows unrestricted filtration.
The One and Only... Another Unique Penn-Plax original!
Four Sizes Available:
*Medium (Fits 10 gal. Tank) - 11-3/8" x 9-5/8"
*Large (Fits 15 - 20 gal. Tank) - 11-3/8" x 11-3/8"
*Extra-Large (Fits 20 gal. Tank) - 11-3/8" x 15-1/2"
*Super (Fits 29-55 gal. Tank) - 11-3/8" x 17-1/2"
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