QI-YU Aqua is a professional manufacturer focused on automatic koi‑pond filtration equipment.

We specialize in self‑cleaning drum filters, bottom‑surface suction units, bio‑filter systems and high‑performance filter media. Our equipment features automatic sewage discharge and low‑maintenance design, greatly reducing daily work for koi pond owners.

We serve global distributors, pond contractors and project partners. Wholesale, OEM and customized solutions are all available. With strict quality control and mature water‑treatment technology, we deliver stable and reliable pond‑filtration products for worldwide customers.