Welcome to Filtreco: filter systems for koi ponds. Every koi lover knows the importance of good water quality. And that means having a good filtration system for your pond. To keep your water clear, the choice is clear: choose Filtreco. When you choose Filtreco, you choose reliability, stability, and long lifespan. When you choose Filtreco, you choose quality. High-quality technology means quality of life for your koi. It is clear.