High-performance bead filter for koi ponds, large ponds and demanding filtration systems.

The Evolution Aqua K+ Advanced Filter is a powerful pressurised bead filter designed to provide both mechanical and biological filtration for koi ponds and large garden ponds. Using Evolution Aqua’s specialist K+ Media, this filter helps remove fine solids while supporting beneficial bacteria for improved water quality and a healthier pond environment.

Available in multiple sizes, with or without blower options, the K+ Advanced Filter range is ideal for pond keepers who want strong filtration performance in a compact, pressurised system.

Advanced K+ Media Filtration Technology

The Evolution Aqua K+ Advanced Filter is a UK-manufactured pressurised pond filter designed to deliver powerful mechanical and biological filtration using Evolution Aqua’s advanced K+ Media. Built for koi ponds and large garden ponds, it combines strong waste removal, biological stability and efficient flow in a compact pressure filter system.

K+ Media has been developed to help improve flow through the filter bed, reduce back pressure and support stable biological performance. Its protected surface area of 1,025m² per m³ helps maintain strong bio-films, while the media’s design allows it to mature quickly and efficiently.

Built for Long-Term Pond Filtration

Manufactured in the UK, the K+ Advanced Filter is produced using a rotational moulding process for strength and durability. The body is made from a single homogenous material, with no joint line, consistent wall thickness and built-in feet as part of the moulded body.

This makes the filter robust, reliable and suitable for demanding pond environments.

Economical to Run

The internal double lateral design helps improve flow through the K+ Media bed, reducing back pressure on the circulating pump. This makes the K+ Advanced Filter an efficient choice for koi keepers looking for powerful filtration without unnecessary energy loss.