Tetra EX Filter Cartridge Large (4 Pack) evolution 1500 Aqueon Submersible Aquarium Heaters are

Aqueon Submersible Aquarium Heaters are made from thermal shatter-resistant quartz glass and were designed to absorb impacts

The bowed bottom weight allows the scrub pad to rest above the gravel for easy retrieval while reducing the risk of scratching the aquarium walls

substantially enlarged rubber feet stabilizers offer superior vibration-dampening ability and added protection

Maintenance is easy

a 60- second wait

Tetra EX Filter Cartridge Large (4 Pack) evolution 1500 Aqueon Submersible Aquarium Heaters areNow a Carbon Filter as innovative as the Whisper EX Filtration System it's designed to fit. Tetra Carbon Filters' layers of multi density floss effectively trap even the smallest particulates while activated carbon rapidly eliminates odor, discoloration, impurities, and toxins. The result? Water that's clear, healthy, and polished. Large EX Fits Whisper EX30, EX45 & EX70