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The QK35 Combi Drum Filter is a high-performance, fully automatic pond filtration system combining advanced mechanical waste removal with biological filtration in one compact unit. Designed for koi ponds and garden ponds, the QK35 provides excellent water clarity, efficient waste removal and dependable biological filtration.
Manufactured by DVS and supplied under the Queni Koi brand, the QK35 combines the proven engineering and reliability of the DVS Pro filtration range with durable construction and advanced automatic cleaning technology.
Featuring a patented 70-micron woven stainless steel drum screen, the QK35 effectively removes fine suspended waste, debris and organic particles before water enters the biological filtration chamber. The integrated moving bed chamber provides an ideal environment for beneficial bacteria, supporting the biological breakdown of harmful ammonia and nitrite.
Constructed from precision CNC-machined polypropylene with stainless steel components, the QK35 is designed for strength, durability and continuous operation.
The fully automatic cleaning system uses height-adjustable water level sensor probes to monitor the filter and activate cleaning cycles when required. An integrated low water level safety cut-out helps protect connected pond pumps from running dry, while adjustable cleaning duration allows the system to be configured to individual installations.
High-quality, replaceable cleaning nozzles and a removable spray bar make routine maintenance straightforward, particularly in areas with hard water.
The QK35 is supplied in gravity-fed configuration as standard, with a pump-fed option available upon request at no additional cost, subject to lead time.
An internal submersible cleaning pump, rated up to 5 bar, is included to provide effective cleaning of the drum screen.
Technical Specifications
Specification Details Manufacturer DVS Brand Queni Koi Model QK35 Combi Drum Filter Maximum Flow – Gravity Fed 35,000 LPH Maximum Flow – Pump Fed 24,500 LPH Inlets 3 × 4" Outlets 5 × 4" Waste Outlet 1 × 4" Drum Screen 70 Micron Biological Filtration Moving Bed Recommended Biological Media 175L K+ Media Internal Bypass 2 × 4" Bypass Plugs Construction CNC-Machined Polypropylene Cleaning System Fully Automatic Cleaning Activation Dual Water Level Probes Cleaning Duration Adjustable Pump Protection Low Water Level Safety Cut-Out Cleaning Pump Internal Submersible Pump, up to 5 Bar Installation Gravity Fed / Pump Fed Gravity Installation Height 12cm from filter top to water level Key Features
Manufactured by DVS and supplied under the Queni Koi brand.
Fully automatic mechanical and biological pond filtration.
Patented 70-micron woven stainless steel drum screen for fine waste removal.
Maximum flow rate of 35,000 litres per hour in gravity-fed configuration.
Integrated moving bed biological filtration chamber.
Recommended biological media quantity of 175 litres of K+ media.
Precision CNC-machined polypropylene construction with stainless steel components.
Automatic self-cleaning with adjustable cleaning duration.
Height-adjustable dual water level sensor probes.
Low water level safety cut-out to protect connected pond pumps.
High-quality, replaceable cleaning nozzles.
Removable spray bar for convenient maintenance.
Integrated bypass facility.
Internal submersible high-pressure cleaning pump included.
Gravity-fed installation as standard, with pump-fed configuration available upon request.
What's Included
QK35 Combi Drum Filter.
Control panel with manual cleaning function.
Internal submersible high-pressure cleaning pump.
Drum filter lid.
2 × 4" internal bypass plugs.
Installation Information
The QK35 is supplied in gravity-fed configuration as standard. For gravity-fed installations, the required installation height is 12cm between the top of the filter and the pond water level.
Pump-fed configuration is available upon request at no additional cost, although additional lead time may apply.
The integrated biological chamber is designed for moving bed filtration media, with 175 litres of K+ media recommended for optimal biological performance.
Biological media is not stated as included and should be purchased separately unless otherwise specified.
Actual flow rates will depend on the installation, pipework, pump selection and biological media configuration.
Warranty & Support
The QK35 Combi Drum Filter is supplied with a 2-year warranty on all parts, including the drum screen, subject to fair usage and warranty conditions.
UK-based customer support and replacement parts are available through Queni Koi Southern.
Delivery Information
Due to the size and weight of this product, delivery is arranged by pallet.
Please contact us before ordering to confirm delivery arrangements and charges. Someone must be available at the delivery address to accept the pallet upon arrival.
If the product is not currently in stock, additional manufacturing or delivery lead times may apply. Please contact us for current availability.
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What types of products do you offer?
At Queni Koi Southern, we provide a curated selection of high-quality pond supplies and premium koi food. Our products include innovative items like the Sinking Air Line for seamless pond aeration and advanced koi food such as the JPD Shogun, designed to enhance the health and vibrancy of your koi.
How can I ensure the well-being of my koi?
To promote the well-being of your koi, it's essential to provide them with high-quality food and maintain a healthy pond environment. Our expertly formulated koi food under the trademarked brand Kenko Koi food and our pond supplies are designed to support the health and vibrancy of your aquatic life, ensuring your pond remains a thriving ecosystem.
What is your shipping policy?
We pride ourselves on prompt delivery! We offer free next working day delivery on orders over £100, and we use trusted carriers to ensure your products arrive safely and on time. For more details, please check our shipping policy on our website.
What should I do if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us at orders@queni-koi.co.uk as soon as possible. We will replace the product free of charge and cover the return shipping costs for the incorrect or damaged item.
Can I return koi or specially made products?
Unfortunately, once koi have left our premises, we cannot accept any responsibility for them, and they cannot be returned. Additionally, specially made products, such as custom filtration systems, can only be returned if they are faulty or damaged.
How do I cancel my order?
If you wish to cancel your order, you can do so within 14 days of receiving your products. Please contact us at orders@queni-koi.co.uk for authorization.
What is your refund policy?
We will refund all sums paid by you if the items are returned in the condition they were sent. Please allow up to 3-5 days for us to process your return once we receive the items back.
How can I contact customer support?
You can reach our customer support team by emailing us at sales@qk-s.co.uk or by calling us / messaging us on Whatsapp at 0116 2677053. We're here to help!
