Evolution Aqua K Advanced Filter 36″ – High‑Performance Pressure Filter for Large Ponds The Evolution Aqua K Advanced Filter 36 is a premium UK-made pressure filter designed for large ponds up to 91,000 L (20,000 UK gallons / 24,000 US gallons). Equipped with 250 L of K Media, it delivers outstanding mechanical and biological filtration, ensuring crystal-clear water in both koi and garden ponds. Key Features Robust rotational-moulded body with built-in feet—no weak points, resistant to pressure up to 1.5 bar (tested to 2.5 bar) Pre-filled with K Media: up to 312 ft² of surface area per cubic foot, supporting fast-maturing beneficial bacteria and efficient filtration down to 1 micron Economical pump operation: engineered double laterals and laminar flow reduce back-pressure and energy usage. User-friendly cleaning: supplied with multi-port valve, blower for air-assisted backwash, and pipework for quick maintenance. Specifications Feature Detail Max. Pond Volume 91,000 L Optimum Flow Rate 30,000 LPH (6,600 GPH) K Media Volume 250 L Diameter 36″ (900 mm) Valve & Pipe Size 2″ multi-port Max Working Pressure 1.5 bar (factory tested to 2.5 bar) How It Works Pond water is pumped into the filter, travels upward through K Media—trapping debris and cultivating beneficial bacteria— before exiting via top laterals. The filter is easily backwashed by turning the valve and engaging the blower to flush waste. Gardeners and hobbyists appreciate the high surface area and fast bio-film establishment:
