Medium and large replacement filter cartridges for filters included with Zilla Deluxe Aquatic Turtle Kits. Also for use with Basking Platform Filters and Aquatic Reptile Internal Filters.

Installs in seconds: rinse first and align cartridge bottom key slot for an accurate fit inside the filter

Easy installation using the "FRONT" orientation tab

For optimal performance, change approximately every 4 weeks

For Zilla Internal Filter 20G and Small Basking Platform Filter 20G