Tetra Easy Crystal Filter 250 Suction Cup x 2

Replacement suction cups to fit Tetra/Tetratec IN 800 Plus, IN 1000 Plus, Easy Crystal Filter Box 300, Easy Crystal Filter Box 600 aquarium filters. They also fit Tetra HT 25-300w, Tetra EHT 50-300w Proline, and Tetra RHT 50 Repto aquarium and reptile heaters.