• FREE DRUM FILTERS
    All RDFs come with a Two-Year Manufacturer’s warranty and lifetime support.
    All parts are in US inventory for quick support of our US customers.

    FREE 20s

    FREE 20s

    $3,450.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 5,000 GPH (20 m3/h)

    SIZE [Cm] (LxWxH) 45cm x 50cm x 49cm
    SIZE [In] (LxWxH) 17.7" x 19.7" x 19.3"
    INLET Two (2) 3 Inch
    OUTLET Two (2) 3 Inch
    BYPASS Two (2) 2.5 Inch
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    FREE 30

    FREE 30

    $3,950.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 8,000 GPH (30 m3/h)

    SIZE [Cm] (LxWxH) 55cm x 50cm x 49cm
    SIZE [In] (LxWxH) 21.7" x 19.7" x 19.3"
    INLET Two (2) 4 Inch
    OUTLET Two (2) 4 Inch
    BYPASS Two (2) 2.5 Inch
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    FREE 35

    FREE 35

    $4,650.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 10,000 GPH (35 m3/h)

    SIZE [Cm] (LxWxH) 60cm x 60cm x 61cm
    SIZE [In] (LxWxH) 23.6" x 23.6" x 24.0"
    INLET Two (2) 3 Inch and Two(2) 4 Inch
    OUTLET Three (3) 4 Inch
    BYPASS Two (2) 3 Inch
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    FREE 60

    FREE 60

    $5,350.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 15,000 GPH (60 m3/h)

    SIZE [Cm] (LxWxH) 85cm x 60cm x 61cm
    SIZE [In] (LxWxH) 33.5" x 23.6” x 24.0"
    INLET Four (4) 4 Inch
    OUTLET Four (4) 4 Inch
    BYPASS Two (2) 4 Inch
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    FREE 80 (Long & Narrow Version - Special Order)

    FREE 80 (Long & Narrow Version - Special Order)

    $6,550.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 20,000 GPH (80 m3/h)

    SIZE [Cm] (LxWxH) 105cm x 60cm x 61cm
    SIZE [In] (LxWxH) 41.3" x 23.6” x 24.0"
    INLET Four (4) 4 Inch
    OUTLET Four (4) 4 Inch
    BYPASS Two (2) 4 Inch
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    FREE 80s (Standard Version)

    FREE 80s (Standard Version)

    $6,550.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 20,000 GPH (80 m3/h)

    SIZE [Cm] (LxWxH) 85cm x 70cm x 71 cm
    SIZE [In] (LxWxH) 33.5" x 27.6" x 28.0"
    INLET Four (4) 4 Inch
    OUTLET Four (4) 4 Inch
    BYPASS Two (2) 4 Inch
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    FREE 100

    FREE 100

    $7,450.00
    Price includes a control box and a spray pump.
    Contact for ordering!

    FLOW RATE 25,000 GPH (100 m3/h)

    SIZE [Cm] (LxWxH) 105cm x 70cm x 71cm
    SIZE [In] (LxWxH) 41.3" x 27.6" x 28.0"
    INLET Five (5) 4 Inch
    OUTLET Five (5) 4 Inch
    BYPASS Two (2) 4 Inch
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    FREE 120

    FREE 120

    $9,350.00
    Price includes a control box and a spray pump and an Aux Relay box for external pump connections.
    Contact for ordering!

    FLOW RATE 30,000 GPH (120 m3/h)

    SIZE [Cm] (LxWxH) 85cm x 115cm x 61cm
    SIZE [In] (LxWxH) 33.5" x 45.3" x 24.0"
    INLET Seven (7) 4 Inch
    OUTLET Seven (7) 4 Inch
    BYPASS Four (4) 4 Inch
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    FREE 160

    FREE 160

    $11,750.00
    Price includes a control box and a spray pump and an Aux Relay box for external pump connections.
    Contact for ordering!

    FLOW RATE 40,000 GPH (160 m3/h)

    SIZE [Cm] (LxWxH) 105cm x 115cm x 61cm
    SIZE [In] (LxWxH) 41.3" x 45.3" x 24.0"
    INLET Eight (8) 4 Inch
    OUTLET Eight (8) 4 Inch
    BYPASS Four (4) 4 Inch
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    FREE 200

    FREE 200

    $13,950.00
    Price includes a control box and a spray pump and an Aux Relay box for external pump connections.
    Contact for ordering!

    FLOW RATE 50,000 GPH (200 m3/h)

    SIZE [Cm] (LxWxH) 105cm x 137cm x 71cm
    SIZE [In] (LxWxH) 41.3" x 54.0" x 28.0"
    INLET Ten (10) 4 Inch
    OUTLET Ten (10) 4 Inch
    BYPASS Four (4) 4 Inch
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    SHOWER FS150 - Weir Output - 1.5 meter version

    SHOWER FS150 - Weir Output - 1.5 meter version

    $3,950.00
    Weir Output - 1.5 meter version (FS150)

    SS 304 - thickness 1.5 mm
    Standard SET Includes 3 TRAYS + 1 LID
    Each Tray has Two-Layers Bottom

    SIZE of ONE TRAY (FS150):
    [cm] 150cm x 54cm x 33cm
    [In] 59" x 21" x 13"

    Media is not included.

    We can customize your showers. Contact us for customization!
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    SHOWER - FS100 - Weir Output - 1.0 meter version

    SHOWER - FS100 - Weir Output - 1.0 meter version

    $3,450.00
    Weir Output - 1.0 meter version (FS100)

    SS 304 - thickness 1.5 mm
    Standard SET Includes 3 TRAYS + 1 LID
    Each Tray has Two-Layers Bottom

    SIZE of ONE TRAY (FS100):
    [cm] 100cm x 54cm x 33cm
    [In] 39.4" x 21" x 13"

    Media is not included.

    We can customize your showers. Contact us for customization!
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    SHOWER - Pipe Outputs - FS150P- 1.5 meter version

    SHOWER - Pipe Outputs - FS150P- 1.5 meter version

    $3,950.00
    Pipe Outputs - 1.0 meter version (FS100-P)

    SS 304 - thickness 1.5 mm
    Standard SET Includes 3 TRAYS + 1 LID
    Each Tray has Two-Layers Bottom

    SIZE of ONE TRAY (FS150):
    [cm] 150cm x 54cm x 33cm
    [In] 59" x 21" x 13"

    Media is not included.

    We can customize your showers. Contact us for customization!
    View more details...
    SHOWER - Pipe Outputs - FS100P- 1.0 meter version

    SHOWER - Pipe Outputs - FS100P- 1.0 meter version

    $3,450.00
    Pipe Outputs - 1.0 meter version (FS100-P)

    SS 304 - thickness 1.5 mm
    Standard SET Includes 3 TRAYS + 1 LID
    Each Tray has Two-Layers Bottom

    SIZE of ONE TRAY (FS100-P):
    [cm] 100cm x 54cm x 33cm
    [In] 39.4" x 21" x 13"

    Media is not included.

    We can customize your showers. Contact us for customization!
    View more details...
    IoT Box

    IoT Box

    $250.00
    IoT Box is the Smart Device using our proprietary cloud-based App developed by FREEDrum Filter to monitor, send notification to smartphone (IOS and Android) and control our RDF over the internet.
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    Pump Power Box (Aux Relay Box)

    Pump Power Box (Aux Relay Box)

    $300.00
    Pump Power Box is a Power Auxiliary Relay that allows users to run a dedicated power source to the box to operate a high-power pump or multiple pumps. The pumps, even though are on a separate dedicated power source, still can be controlled by the control box to shut them down in the event of failure.
    View more details...
    CONTROL BOX (included with RDF)

    CONTROL BOX (included with RDF)

    RINSE COUNTER
    FAIL ALARM
    RINSE PUSH
    AUTO / MANUAL

    Control Box comes with every FREEDrum Filter

    IoT Box sold separately!
    View more details...
  • FEATURES

    Stainless Steel Construction

    Stainless steel construction withstands the harsh conditions in any koi pond environment. Durable 70 micron mesh gives crystal clear water while maintaining excellent flow rates.

    High Flow - Compact Size

    Optimized design for maximum submerged drum’s surface area for maximum flow in a smallest possible installation space. Top of the filter sits about 4 inch above water level allowing for low installation height.

    Fully Sealed with UV Silicon

    The silicone sealing mechanism is UV-resistant, simple design for reliable and excellent seal.

    Open and visible Design

    Open design input/output chambers with transparent lid for easily access and observation of water level, degree of dirtiness or any debris and leaves

    Control Box and Safety Features

    Control box features a simple ‘plug & play’ design that is easy to use, stable and durable, with easy maintenance while still handling all complex operations. Can operate in fully automatic mode (AUTOMATIC) or custom timer mode (MANUAL).

    Multi Inputs - Outputs Design

    Designed with maximum number of inlets and outlets allow for many inputs: skimmers, bottom drains, Midwater intake etc... and many outputs to multiple pumps or bio tanks

    Easy Access Waste Tray

    Large sloping open waste tray, leading to a large discharge pipe that makes it easy for waste to be pushed out. Easy access to remove leaves and large debris.

    Bypass Flow

    Filters are equipped with bypass ports (varied by models) which can be manually opened for emergency maintenance to allow water to continue flowing, bypassing the mesh drum.

  • ABOUT

     a professional drum filter for koi ponds

     

    FREEDrum Filter company was established in 2017 and quickly became the number-one manufacturer in Vietnam in stainless steel RDF. Over the years, we have grown into the leading manufacturer in Asia with thousands of units having been produced and sold across over 10 countries. Our RDFs are known for their beauty and years of proven reliability.

     

    We designed our RDF from the beginning with these principles:

     

    • Simple, easy to use, and still handles all of the complex functionality

    • Beautiful, durable, and reliable

    • Designed to operate with the most effectiveness

    --------------------

    • Our filters use high quality, robust, and simple electronic components to mitigate failures and make troubleshooting and replacing components easy.

    • No complex and delicate electronic modules that are prone to failure in the harsh koi pond environment.

    • 99% percent of the filter is stainless steel construction that can withstand harsh conditions.

     

    BeyondKoi is proud to be the exclusive distributor of FREEDrumfilter in the US.

     

  • CONTACT

    in English and Vietnamese

    Questions or Inquiries?

    Languages: English, Vietnamese
    703-755-0065