RATZ Aqua und Polymer Technik is your reliable partner in plastic material construction since 1988. Especially in the field of aquatic systems our team has developed many products for water treatment, such as different kind of skimmers and reactors, mechanical filters and unique random media for biological filtration. Everything is made of excellent materials and in accurate processing. This means highest quality "Made in Germany" for an unbelievable price or simply: RATZ standard