🌊 Dive into Clean Water with Ease! Perfect for fish of all ages, ensuring a thriving aquatic environment. Activated carbon coating ensures crystal-clear water. Replace monthly for hassle-free fish happiness. Sustainable coconut coir cartridges for guilt-free aquarium care. Designed for Interpet CF1 and Aqua Cube models. Fits CF1 Model Purifies Water Biodegradable Material The Interpet 3 Month Service Pack includes 3 Front and 3 Back Coir Tech Cartridges designed specifically for the Interpet CF1 model. Made from biodegradable coconut coir, these cartridges purify aquarium water while being easy to replace and compostable, ensuring a sustainable choice for fish enthusiasts.