Penn-Plax 3 Replacement Filter Cartridges for The BT1 Betta Fish Tank Aquarium Kit 1.5 Gallon
These cartridges have been specifically designed to fit the filter used in the BT1 aquarium, so all you need to do is switch out the old one and replace it with one of these.
Penn-Plax, manufacturer & distributor of top Pet Supplies Penn-Plax is a family owned business that was established in 1956 in Brooklyn, New York. Over the years our goal remains the same; to enhance the pet ownership experience.
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