Oase BioTec 24000 ScreenMatic² Pond Filter – Automatic Mechanical & Bio Filter for Large Koi Ponds
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Description
The Oase BioTec 24000 ScreenMatic² is a professional-grade, gravity-fed flow-through pond filter rated for ponds up to 24,000 gallons without fish or 6,000 gallons with koi, with maximum pump flow of 2,110–3,300 GPH. Featuring Oase's patented ScreenMatic² automatic belt cleaning system, a 300-micron self-cleaning screen, three-zone biological foam filtration, an active LED display, and a double-sealed motor, this filter provides automated high-performance filtration for large koi ponds and ornamental water gardens. Backed by a 3-year warranty (2-year standard + 1-year with product registration). Eligible for the Oase ClearWater Guarantee when paired with the Oase AquaMax Eco Premium 4500 and Bitron C 55C UV Clarifier.
What's Included
Filter System
- BioTec 24000 ScreenMatic² filter body with weatherproof housing and storm-safe lid fastening clips
- ScreenMatic² automatic belt (300-micron self-cleaning screen) with double-sealed motor and reinforced screen material
- Three-zone biological filter foams (3 different densities supporting varied beneficial bacteria populations)
- Sludge basket (redesigned for greater volume; prevents water leaking back into filter chamber)
- Rubberized separator lip for large debris pre-separation
- Slide valve on sludge drain for clean waste removal
- Active LED display panel (shows cleaning status and maintenance alerts)
- Input connection adapters: 1", 1-1/4", 1-1/2"
- Brush for belt filter cleaning
- Installation and user manual
Not Included -- Must Purchase Separately
- 4" rubber coupling (required for outlet connection to 4" DN110 return pipe)
- Pond circulation pump (min 2,110 GPH / max 3,300 GPH recommended: Oase AquaMax Eco Premium 4500 or AquaMax Eco Classic 3600)
- UV Clarifier (recommended for ClearWater Guarantee: Oase Bitron C 55C)
- FiltoCap rock cover (for concealment in landscape)
- 4" DN110 return pipe and fittings
Technical Specifications
| Specification | Detail |
|---|---|
| SKU / Model | 44120 | Oase BioTec 24000 ScreenMatic² |
| Max Pond (No Fish) | 24,000 gallons |
| Max Pond (Small/Ornamental Fish) | 12,000 gallons |
| Max Pond (Koi) | 6,000 gallons |
| Min. Flow Rate | 2,110 GPH |
| Max. Flow Rate | 3,300 GPH (3,302 GPH) |
| Screen Fineness | 300 microns (automatic self-cleaning belt) |
| Dimensions | 31"L × 23"W × 25.5"H |
| Input Connections | 1", 1-1/4", 1-1/2" (adapters included) |
| Outlet Connection | 4" (DN 110) — 4" rubber coupling required, NOT included |
| Sludge Drain | 2" with slide valve |
| Filter Media | 3-zone biological filter foam (three densities); sludge basket |
| Automation | Intelligent debris sensor triggers auto belt cleaning; manual override push button |
| Display | Active LED display (cleaning status + maintenance alerts) |
| Motor | Double-sealed ScreenMatic motor; reinforced belt screen |
| Installation | Gravity-fed (outlet MUST be above pond water level) |
| Max Partial Burial | Up to 1/3 of unit height |
| Warranty | 2-year standard; 3-year with online registration at oase.com |
| ClearWater Guarantee | Available when paired with compatible pump + Bitron C 55C UV |
| Shipping | LTL freight (palletized) |
How the ScreenMatic² Auto-Cleaning Works
Water from your pond pump enters the BioTec 24000 through the 1"–1-1/2" inlet, flowing first over the 300-micron ScreenMatic² belt screen where coarse debris is captured. An intelligent sensor mounted above the screen continuously monitors debris buildup. When the sensor detects a preset buildup level, it automatically activates the double-sealed cleaning motor, which advances the belt and deposits captured debris into the enlarged sludge basket below the screen. The sludge basket can be removed for emptying or the slide valve on the sludge drain opened to flush waste with minimal mess.
After mechanical pre-filtration through the screen, water flows through three zones of biological filter foam with progressively finer densities, each hosting distinct communities of beneficial bacteria. This multi-zone approach maximizes biological surface area and ensures complete ammonia and nitrite processing. Filtered water returns to the pond through the 4" outlet by gravity. An active LED display on the unit shows current cleaning status and alerts when manual maintenance is needed.
Manual override: A push button allows manual activation of the belt cleaning cycle at any time, without waiting for the sensor to trigger automatically. Useful during heavy debris periods (autumn leaf fall, algae blooms).
Oase ClearWater Guarantee
When the BioTec 24000 ScreenMatic² is properly sized and paired with compatible Oase components, it qualifies for Oase's ClearWater Guarantee — a commitment to water clarity visible to three feet depth (a tape measure placed vertically to 3 feet in the pond will be readable at the 1-inch tip). The ClearWater Guarantee is unique in the pond filter industry and reflects Oase's confidence in their complete system approach.
ClearWater Guarantee pairing for BioTec 24000: Oase AquaMax Eco Classic 3600 or AquaMax Eco Premium 4500 pump + Oase Bitron C 55C UV Clarifier. Both must be registered online at oase.com along with the BioTec 24000 to qualify for the 3-year warranty and ClearWater Guarantee.
BioTec ScreenMatic² Series Comparison
| Feature | BioTec 18000 (SKU 42975) | BioTec 24000 (this filter) | BioTec 39000 (SKU 93036) |
|---|---|---|---|
| No Fish Capacity | 18,000 gal | 24,000 gal | 39,000 gal |
| Koi Capacity | ~4,000 gal koi | 6,000 gal koi | ~10,000 gal koi |
| Max Flow Rate | ~2,600 GPH | 3,300 GPH | ~5,300 GPH |
| Dimensions | Smaller | 31"x23"x25.5" | Larger |
| Warranty | 2-yr / 3-yr registered | 2-yr / 3-yr registered | 2-yr / 3-yr registered |
| ClearWater Guarantee | Yes (with correct pairing) | Yes (AquaMax Premium 4500 + Bitron 55C) | Yes (with correct pairing) |
Frequently Asked Questions
How does the Oase ScreenMatic² automated debris separation work?
Water enters the BioTec 24000 from the pond pump and flows over the 300-micron ScreenMatic² belt. An adjustable intelligent sensor mounted above the screen continuously detects the level of debris accumulation. When buildup triggers the sensor, the double-sealed cleaning motor automatically advances the belt, depositing captured debris into the redesigned sludge basket below.
The cleaning cycle runs automatically without manual intervention. A manual push button allows you to trigger the cycle at any time (useful during high-debris seasons like autumn). The active LED display shows current cleaning status and alerts for maintenance needs.
What is the maximum pond capacity for the BioTec 24000?
Oase rates the BioTec 24000 ScreenMatic² as follows:
- No fish (decorative pond): up to 24,000 gallons
- Ornamental/small fish: up to 12,000 gallons
- Koi (high biological load): up to 6,000 gallons
Note: The "24000" in the product name refers to the 24,000-gallon decorative pond rating, not the flow rate. The filter operates at 2,110–3,300 GPH — pair with the AquaMax Eco Premium 4500 (within this range) for optimal performance and ClearWater Guarantee eligibility.
Does the BioTec 24000 require manual foam cleaning?
Routine coarse debris removal is fully automated by the ScreenMatic² belt. For the biological foam zones, Oase has designed the filter so that the foams are cleaned directly inside the filter using pond water — the integrated cleaning handles allow you to compress the foam zones in place, releasing waste into the sludge drain without removing the foams or handling them outside the unit. This preserves the beneficial bacteria colony in the foams while removing accumulated waste.
The slide valve on the sludge drain allows the released waste water to exit cleanly. No sponges need to be removed from the filter, squeezed outside, or re-inserted — cleaning is done entirely within the filter body.
Is the BioTec 24000 compatible with Oase Bitron UV clarifiers?
Yes — and Oase specifically recommends pairing the BioTec 24000 with the Bitron C 55C UV Clarifier for optimal performance. This pairing, combined with the correct pump (AquaMax Eco Premium 4500 or Eco Classic 3600), qualifies the entire system for the Oase ClearWater Guarantee — Oase's commitment to pond clarity visible to a 3-foot depth.
The Bitron C UV clarifier mounts directly to the filter intake for a streamlined installation. Register all components online at oase.com to activate both the 3-year extended warranty and the ClearWater Guarantee.
Can the BioTec ScreenMatic² 24000 be buried to hide it?
The BioTec 24000 is a gravity-fed flow-through filter — the water outlet must remain above the pond water level for correct gravity return to the pond. Because of this, it cannot be fully buried. However, it can be partially buried up to 1/3 of its height to reduce its visual prominence.
To conceal the filter completely, use the Oase FiltoCap rock cover (sold separately), which creates a realistic rock appearance over the filter housing. This is a popular choice for landscape installations where the filter needs to be hidden within garden beds. The FiltoCap does not affect filter performance or maintenance access.
Safety notes: DO NOT SUBMERSE the BioTec 24000. The unit is not waterproof. Not approved for swimming pools or saltwater applications.
Oase BioTec 24000 ScreenMatic² (SKU 44120): auto 300-micron belt screen, 3-zone bio foam, LED display, 2,110–3,300 GPH, 31"x23"x25.5", 1"–1.5" inlet / 4" outlet. 24,000 gal no fish / 6,000 gal koi. 3-year warranty with registration. ClearWater Guarantee eligible. 4" rubber coupling required, not included. LTL freight.
Need help sizing this filter for your koi pond or selecting the right pump and UV pairing? Call or text (765) 508-4352 — Monday through Friday, 9 AM to 5 PM EST.
Price Match
At Pond Pro Direct, we want you to shop with confidence, knowing you’re always getting a good deal.
We will match or beat the lowest online price on its products.
If you find a lower price for any products on our store, we will beat it by $50 for products listed over $2000. In order to be eligible, you must provide proof, whether a screenshot, invoice, email, etc. of the lower offer.
Please note that this does not apply to every product in the store, so reach out via email or chat for confirmation before purchasing.
For the policy to apply, simply send us a screenshot, link, or any other proof of the lower price.
For more information, please check out Price Match Policy Page
Shipping & Delivery
Order Processing
Orders are processed within 1–5 business days, depending on product type, brand, and fulfillment method. Products sold on Pond Pro Direct ship directly from manufacturers or authorized distribution partners and do not ship from a single centralized warehouse.
Processing times may vary by brand, item type, fulfillment method, and whether an item is made to order or ships via freight.
Order Confirmation
After placing your order, you will receive an order confirmation email confirming that we have received your order and pre-authorized your payment method.
Once your order is received, we contact the manufacturer or distribution partner to confirm availability and fulfillment timelines.
- If an item is unavailable or on backorder, we will notify you by email and void the pre-authorization.
- If the item is available, the payment will be processed and the order submitted for shipment.
Order Shipment
If your order is in stock and payment is processed, it will typically ship within 6–13 business days. Once your order ships, tracking information (when available) will be sent to the email address provided at checkout.
If you do not receive shipping confirmation within 6 business days, please contact us at support@pondprodirect.com.
Shipping Destinations
At this time, we primarily ship within the United States. Some products may be available for shipment to Canada. If the website allows checkout and accepts your shipping address, the product is eligible for delivery to that location.
Changing Your Shipping Address
Address changes after an order has been processed or shipped may result in delays or additional carrier fees. Any carrier charges associated with address changes are the responsibility of the customer.
Shipping Times
All shipping times are estimates only and not guarantees.
- Typical handling time: 1–5 business days
- Typical transit time after shipment: 5–8 business days
- Estimated delivery window: 6–13 business days
Delivery timelines may vary based on brand, item type, production status, freight requirements, and carrier availability.
If an order is cancelled after it has been processed or shipped, the customer may be responsible for applicable shipping charges, freight fees, carrier return fees, and warehouse handling costs, where applicable.
Shipping Options
Available shipping options vary by product and location.
Our standard Curbside Delivery option is provided at no additional cost where applicable and delivers the item to the curbside or driveway of the delivery address.
Additional options, such as Threshold Delivery or White Glove Delivery, may be available for select products and locations.
For full details regarding freight delivery, inspection requirements, liftgate service, returns, and customer responsibilities, please review our full Shipping Policy page.
Returns & Refunds
Cancellations & Refunds
Orders may be canceled free of charge before shipment, unless the item is classified as Custom or Made-to-Order (see below).
If you have questions about your order, please contact us at support@pondprodirect.com or call (765) 508-4352 during business hours.
Cancellations (Before Order Ships)
If you need to cancel an order before it ships, please contact us as soon as possible. Orders canceled prior to shipment are eligible for a full refund.
You can reach our team by phone at (765) 508-4352, via live chat on our website, or by email at support@pondprodirect.com.
Cancellations (After Order Ships)
Once an order has shipped or entered fulfillment, it may no longer be eligible for cancellation. If you no longer wish to keep the item, you must wait until delivery and then request a return.
A Return Merchandise Authorization (RMA) is required before returning any item.
Custom or Made-to-Order Items
Custom or made-to-order products are produced specifically for your order and cannot be canceled or refunded once production has begun, except in cases of defect or error.
Product pages will clearly indicate when an item is custom or made-to-order. If you are unsure whether an item falls into this category, please contact us before placing your order.
Returns & Refunds
Returns are subject to the following conditions:
- Customers have 30 days from delivery to request a return, unless otherwise stated on the product page or by manufacturer policy
- Items must be unused, uninstalled, and in original packaging
- An RMA is required prior to returning any item
Because we ship products directly from manufacturers, return eligibility may vary by brand. If a manufacturer does not permit returns on a specific product, we may be unable to accept the return. Please contact us if you would like confirmation of return eligibility for a specific item.
Fees & Shipping Costs
- Return shipping costs are the responsibility of the customer unless the item is defective or shipped in error
- Freight / LTL shipments may incur higher return shipping costs due to carrier fees
- Approved returns of non-defective items may be subject to a restocking fee of up to 25%
- Original outbound shipping charges are non-refundable
If you are exchanging an item rather than returning it outright, we may be able to assist with some costs depending on the product and manufacturer.
For full details, including freight deliveries, damage reporting requirements, and manufacturer-specific terms, please review our complete Return and Refund Policy
