Check the listing for details. Pond Pressure Bio Filter 4000GAL With 13W UV Sterilizer Light 10000L Koi Water. Condition: New. Listed at 137.34 USD. Pond Pressure Bio Filter 4000GAL With 13W UV Sterilizer Light 10000L Koi Water Key Features: ● Quality Material: Made of high-quality ABS material, which features great insulation function.● Excellent Performance: Its maximum flow-through is up to 10000 L/H, suitable for decorative ponds of 2500 gallons and fish ponds of 1500 gallons.● 4 Filter Sponges & Cleaning Indicator: Equipped with 4 filter sponges, which can be removed, washed or replaced, the filter ensures the balance of water flow. Yellow and blue sponge density is different to increase filtration efficiency. An indicator will float up to remind you that the filter needs to be cleaned.● Function Switch & Water Pipe Adapter: The switch on the top can be easily rotated to sewage and drainage through 2 exists, you can adjust it according to your different needs. The water pipe adaptors can match with different diameters of water pipes. There are different sizes of drain holes, which can be adapted to different water pipe widths.● Easy Solution for a Clean & Healthy Pond: This pressure filter is an effective sealed pressure filter system that uses biotechnology to keep your pond clean and healthy. The convenient handle allows for easy relocation, you can place it on the land or in the water. Description: Made of anti-aging ABS material, the pond pressure bio filter is durable. Equipped with an ultraviolet clarifier, it can effectively decompose harmful substances and improve water quality.Two kinds of biochemical sponges with different densities can effectively guarantee the balance of water flow and the reproduction and survival of nitrifying bacteria. In addition, the self-cleaning function can prevent the sponge space from being occupied by mud and the dirty water can be diverted into the sewage system or lawn for water recycling. The bio filter is designed for providing you with crystal clear pond water. Don't hesitate to place an order! Made of high-quality ABS material, resistant to sunlight and agingComes with a UV bulbs system to inhibit the growth of algaeWith bio sponges to ensure the balance of water flow and the reproduction of nitrifying bacterialSuitable for pond, fountain, fish tank and aquariumDual outlet design for effective recycling of water resourcesEasy to maintain with self-cleaning functionComes with detailed instructions for easy operation Package1 x Pressure filter with integrated uvc1 x Spiral stepped hose adapter 1 ½” transparent2 x Spiral stepped hose adapter 1 ½” black1 x Spiral stepped hose adapter 1 ½” threaded, black4 x Union nuts 1 ½”4 x Flat seal1 x Glass seal cover1 x Instruction