The K+ Advanced Filter delivers advanced mechanical and biological filtration to ensure ponds remain healthy and visually clear. Engineered to work efficiently with standard pond pumps, it maximizes energy usage while being simple to operate. Its robust construction uses the latest rotational molding process for long-term reliability. Supplied with pre-installed pipework, multiport valve, and blower, the K+ Advanced Filter is easy to maintain and clean. Its color matches existing pond equipment, ensuring a cohesive and professional appearance. Economical to run and capable of supporting large ponds, it is ideal for hobbyists and professional pond keepers alike. Combining durability, efficiency, and advanced filtration media, the K+ Advanced Filter provides a high-performance solution that keeps water pristine all year round. Model Diameter MaximumPond Size OptimumFlow Rate Volume OfK+Advanced Media Multiport ValveSize Max. WorkingPressure K+AdvancedFilter20 20" (500mm) 18,000 Litres4,000 UK Gallons4,800 US Gallons 6,000 LPH1,320 GPH1,585 US GPH 50 Litres11 UK Gallons13.2 US Gallons 1½" 1.5 Bar K+AdvancedFilter24 24" (620mm) 36,000 Litres8,000 UK Gallons9,600 US Gallons 12,000 LPH2,640 GPH3,170 US GPH 100 Litres22 UK Gallons26.4 US Gallons 2" 1.5 Bar K+AdvancedFilter30 30" (750mm) 54,500 Litres12,000 UK Gallons14,500 US Gallons 18,000 LPH3,960 GPH4,755 US GPH 150 Litres33 Gallons39.6 US Gallons 2" 1.5 Bar K+AdvancedFilter36 36" (900mm) 91,000 Litres20,000 UK Gallons24,000 US Gallons 30,000 LPH6,600 GPH7,925 US GPH 250 Litres55 Gallons66 US Gallons 2" 1.5 Bar How the K+Advanced Filter works Water is pumped into the filter from the pond, through the multi-port valve where the internal pipework directs the water to the bottom laterals. As the water flows upwards inside the K+Advanced Filter, dirt, debris and waste are trapped within the mass of K+Media that floats at the top of the filter. The vast protected surface area provided by K+Media also provides a home for beneficial bacteria, delivering mechanical and biological filtration. The filtered water flows back through the laterals and pipework at the top of the filter, through the multi-port valve and back down the return line into the pond.The K+Advanced Filter, is incredibly easy to clean by simply moving the handle on the multi-port valve into the corresponding positions to perform a backwash and rinse which flushes out the waste trapped inside. Installation The K+Advanced Filter can be installed as shown if you are planning to use a pre-filter such as the Evolution Aqua Cetus Sieve. If you are not planning to use a pre-filter we highly recommend that you fit a strainer basket to the pump.This will prevent leaves, string algae etc. from entering the filter and pump. *It is recommended that all pipework on the pump side (from the pump to the filter and back to the pond) is installed on 2” pipe. Please note on the K+Advanced Filter 20 you will have to reduce your pipe down to 1½” to connect to the multiport valve. This will ensure that your pump is working at its maximum flow. Do not operate the multiport valve with the circulating pump switched on. The air blower ball valve must be closed when the circulating pump is running. The K+Advanced Filter can be installed as shown on a skimmer line.