Aquascape 99774 Signature Series 1000 BioFalls Filter – 1000 Gallon Waterfall & Pond Filtration System
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Description
The Aquascape 99774 Signature Series 1000 BioFalls® Filter is a rotationally molded biological waterfall filter that does two jobs simultaneously: it filters your pond biologically and mechanically, and it creates your waterfall. Water from the pump enters the filter body, passes through two filter mats and optional bio-media, then flows over the 15” spillway lip back into the pond as a natural-looking cascade. Rated for ponds up to 1,000 gallons with flow rates up to 3,000 GPH, it is Aquascape’s entry-level professional BioFalls unit for small-to-medium backyard ponds.
The 99774 can be installed above grade for a traditional waterfall, or buried below grade to create the start of a stream with water emerging from the ground rather than a visible filter box. It includes everything needed for installation except the pump and optional accessories.
What’s Included
- 2 filter mats (coarse + fine biological filter mats)
- 1 filter media net (to hold optional BioBalls)
- 2” bulkhead fitting
- 1.5” PVC slip fitting
- 1.5” kink-free insert fitting
- Fish-safe silicone
- Hardware (patented non-cross-threading screws)
- Instruction manual
⚠ NOT included (optional add-ons): Rock tray (sold separately) | BioBalls (sold separately — filter holds up to 100)
Key Features & Benefits
Technical Specifications
| Specification | Value |
|---|---|
| SKU / UPC | 99774 / 742575997742 |
| Pond Capacity | Up to 1,000 gallons (3,500–3,800 L) |
| Maximum Pump Flow | 3,000 GPH (11,000–11,400 LPH) |
| Spillway Width | 15” (detachable) |
| Bulkhead Port | Single 2” |
| Fittings Included | 1.5” PVC slip + 1.5” kink-free insert |
| Filter Mats | 2 included (coarse + fine) |
| Filter Media Net | 1 included (holds optional BioBalls) |
| BioBalls | Optional — not included (filter holds up to 100) |
| Rock Tray | Optional — not included (sold separately) |
| Fish-Safe Silicone | Included |
| Dimensions (L × W × H) | 17.5” × 20.5” × 17” |
| Construction | Rotationally molded rounded polyethylene |
| Installation | Above grade (waterfall) OR buried (stream source) |
| Hardware | Patented non-cross-threading screws |
| Warranty | Limited Lifetime |
Frequently Asked Questions
What is a BioFalls filter and how does it work?
A BioFalls (biological waterfall) filter is a gravity-fed biological filter that doubles as your pond’s waterfall. Water is pumped from the skimmer on one side of the pond to the BioFalls filter on the opposite side. Inside the filter, water flows through two filter mats and over optional biological media (BioBalls), allowing beneficial bacteria to colonize the surfaces and process ammonia and nitrites from fish waste. The cleaned water then spills over the 15” spillway lip and cascades back into the pond — creating both the waterfall and the filtration in one unit.
Unlike pressurized filters (which need a pump that can push water upward), the BioFalls uses gravity — water is pumped in at the bottom and exits over the top. This means the pump doesn’t need to overcome any head pressure inside the filter.
What pump size do I need for the Signature Series 1000 BioFalls?
The 99774 handles pump flows up to 3,000 GPH. For a 1,000-gallon pond, a pump in the 2,000–3,000 GPH range is typically appropriate — targeting roughly 1× to 2× pond volume per hour of turnover. Aquascape recommends pairing the BioFalls with a matching Aquascape skimmer on the opposite side of the pond for optimal circulation and debris removal. Call us at (765) 508-4352 for pump sizing help specific to your pond dimensions and fish load.
Does the rock tray come included?
No — the rock tray is an optional accessory sold separately. When added, the rock tray sits on top of the filter housing and holds rocks, plants, and gravel to completely naturalize the BioFalls into the surrounding landscape — making the filter body invisible. Without the rock tray, the filter housing is visible above the waterline. The rock tray is one of the most popular add-ons for this filter and is worth adding if a natural look is important for your installation.
Do BioBalls come included in the 99774 box?
No — BioBalls are an optional add-on. The filter includes a media net to hold BioBalls once purchased, but the BioBalls themselves are not included. The filter accommodates up to 100 BioBalls. BioBalls provide additional surface area for beneficial bacteria colonization beyond what the two included filter mats offer alone — particularly valuable for heavily stocked koi ponds. The filter performs basic biological filtration with just the two mats, but BioBalls improve performance in high-bioload systems.
What’s the difference between the BioFalls 1000 (99774) and BioFalls 2500?
The two units are sized for different pond volumes:
- 99774 Signature Series 1000: ponds up to 1,000 gallons | max 3,000 GPH | 15” spillway | 17.5”L × 20.5”W × 17”H
- 09020 Signature Series 2500: ponds up to 2,500 gallons | higher GPH capacity | wider spillway | larger overall dimensions
Choose the 99774 for ponds up to 1,000 gallons. For larger ponds (1,000–2,500 gallons), the Signature Series 2500 (09020) provides the additional filtration capacity and flow handling needed.
Can I bury the BioFalls filter?
Yes. The 99774 can be installed in two primary configurations:
- Above grade: Filter sits at the edge of the pond, elevated to create a traditional waterfall. The housing is visible until disguised with rocks or the optional rock tray.
- Below grade (buried): Filter is buried so only the spillway lip is at grade level, creating a stream that appears to emerge from the earth rather than from a visible filter box. The detachable waterfall lip is essential for this configuration.
The buried configuration creates some of the most naturalistic-looking pondless and stream installations in professional landscaping.
What warranty does the 99774 BioFalls carry?
The Aquascape Signature Series 1000 BioFalls® Filter (99774) carries a Limited Lifetime Warranty from Aquascape Inc. This reflects Aquascape’s confidence in the rotationally molded polyethylene construction of all their BioFalls filters. Contact us at support@pondprodirect.com or (765) 508-4352 for warranty support.
Why Buy from Pond Pro Direct?
- Authentic Aquascape products with full Limited Lifetime Warranty
- Expert pond sizing support — call or text (765) 508-4352, Mon–Fri 9am–5pm EST
- Free shipping on all orders
- Price match guarantee on identical products
- 30-day return period on eligible items
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.
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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.
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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.
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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.
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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.
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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
