Aquascape 29319 Signature Series 6000 BioFalls Pond Filter – Waterfall Biological Filter w/ 2" Bulkhead
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Description
The Aquascape 29319 Signature Series 6000 BioFalls® Filter is a professional-grade biological waterfall filter for ponds up to 6,000 gallons, handling pump flows up to 15,000 GPH through dual 2" bulkhead ports. It ships complete with two Poly-Flo ESA biological filter mats (50% more surface area than traditional filter mats), three media nets, a removable rock and plant tray, fish-safe silicone, and all installation hardware. The rotationally moulded polyethylene body (40"L × 45"W × 29.5"H) is designed for burial and camouflage at the head of a waterfall or stream. Backed by Aquascape's Limited Lifetime Warranty. Ships freight due to dimensions.
What's Included
Filter System
- BioFalls® filter tank with 28" reversible waterfall spillway lip (rotationally moulded polyethylene; structural ribbing for burial strength)
- Rock and plant tray (removable; holds rocks, plants, and gravel for naturalization)
- Two Poly-Flo ESA biological filter mats (50% more biological surface area than traditional filter mats)
- Three media nets/bags (for optional BioBalls or other loose media)
Hardware & Fittings
- Two 2" bulkhead ports (dual, factory-installed)
- Two 2" PVC slip fittings
- Fish-safe silicone (for waterfall liner attachment)
- Patented non-cross-threading screws and hardware
- Installation instructions
Optional Add-On (Sold Separately)
- Aquascape BioBalls — three media nets hold up to 400 BioBalls total; significantly increases biological surface area for heavily stocked koi ponds
- Standard upgrade for high-bioload applications; sold separately
Not Included
- Pond circulation pump (up to 15,000 GPH)
- BioBalls (optional, sold separately — holds 400)
- Flexible pond hose for bulkhead connection
- Companion Signature Series Skimmer (sold separately)
Technical Specifications
| Specification | Detail |
|---|---|
| SKU / Model | 29319 | Aquascape Signature Series 6000 BioFalls® Filter, 2" Bulkhead |
| Pond Capacity | Up to 6,000 gallons (22,700 L) |
| Max Pump Flow Rate | Up to 15,000 GPH (56,800 LPH) |
| Spillway Width | 28 inches (reversible lip) |
| Bulkhead Ports | Dual 2" (two ports) — includes two 2" PVC slip fittings |
| Dimensions | 40"L × 45"W × 29.5"H |
| Weight | 55 lbs (empty) |
| Construction | Rotationally moulded polyethylene (HDPE) — structural ribbing for burial |
| Filter Mats | 2 Poly-Flo ESA biological filter mats (50% more surface area than traditional mats) |
| Media Nets | 3 media nets included |
| BioBalls Capacity | Holds up to 400 BioBalls (optional, sold separately) |
| Rock Tray | Included (removable, for naturalization) |
| Waterfall Lip | 28" reversible spillway (natural stone spillway option) |
| Bulkhead Configuration | Reversible — install on either left or right side |
| Warranty | Limited Lifetime Warranty (Aquascape) |
| Shipping | Common carrier freight (due to 40"×45" dimensions) |
29319 vs. 29384 — SS6000 BioFalls Model Comparison
| Feature | 29319 (this model) | 29384 |
|---|---|---|
| Bulkhead Ports | Dual 2" (two ports) | Dual 3" (two ports) |
| PVC Slip Fittings | Two 2" PVC slip | Two 3" PVC slip |
| Pond Capacity | 6,000 gal | 6,000 gal |
| Max Pump Flow | 15,000 GPH | 15,000 GPH |
| Spillway | 28" reversible | 28" reversible |
| Dimensions | 40"×45"×29.5"H, 55 lbs | 40"×45"×29.5"H, 55 lbs |
| Filter Mats | 2 Poly-Flo ESA | 2 Poly-Flo ESA |
| Warranty | Limited Lifetime | Limited Lifetime |
| Best For | Ponds plumbed with 2" pipe | High-flow ponds plumbed with 3" pipe |
How the Poly-Flo ESA Filter Mats Work
The two included Poly-Flo ESA (Expanded Surface Area) biological filter mats are Aquascape's proprietary media for the BioFalls® series. ESA refers to the mat's expanded polymer structure, which provides 50% more colonization surface area per unit volume than conventional flat filter mats. Water entering the BioFalls® through the dual 2" bulkhead ports undergoes Aquascape's "swirling waterflow" action, moving through the Poly-Flo ESA mats in a pattern that maximizes contact time between water and beneficial bacteria colonies. The result is more complete ammonia and nitrite conversion per gallon of water processed.
For heavily stocked koi ponds, adding Aquascape BioBalls to the three included media nets significantly increases the biological capacity. The SS6000 BioFalls holds up to 400 BioBalls distributed across three media nets. BioBalls are sold separately and are the standard upgrade for professional koi pond installations with high bioload.
Frequently Asked Questions
What is the maximum flow rate for the Signature Series 6000 with 2" Bulkhead?
The Aquascape 29319 BioFalls® Filter is engineered for high-volume water features, supporting pump flows up to 15,000 GPH (56,800 LPH). This is the same maximum flow rating as the 29384 (3" bulkhead) model — the bulkhead size affects plumbing compatibility, not the filter's rated maximum flow capacity.
The dual 2" bulkhead ports accommodate two separate pump lines or a single high-flow pump using 2" plumbing. Both ports are reversible, installable on either the left or right side based on your plumbing layout. Two 2" PVC slip fittings are included.
How does the BioFalls 6000 provide biological filtration?
Water enters the SS6000 BioFalls through the dual 2" bulkhead ports and undergoes Aquascape's "swirling waterflow" action — the circular chamber creates a swirling water movement that maximizes contact time between the incoming water and the filter media. The water passes through two Poly-Flo ESA biological filter mats, which provide 50% more colonization surface area than traditional filter mats. Beneficial nitrifying bacteria colonize the ESA mat surfaces, converting ammonia from fish waste into nitrite and then into harmless nitrate.
For heavily stocked koi ponds, adding Aquascape BioBalls to the three included media nets significantly increases biological capacity. The SS6000 BioFalls holds up to 400 BioBalls (sold separately), distributed across three media nets for even flow distribution.
Is this BioFalls filter suitable for a koi pond?
Yes. The 29319 is specifically engineered for large ecosystems and koi ponds up to 6,000 gallons. Its two Poly-Flo ESA filter mats and three media net capacity (holds up to 400 BioBalls if supplemented) provide sufficient biological surface area to handle the waste produced by a moderately to heavily stocked koi system.
For maximum bioload handling in a 6,000-gallon koi pond, Aquascape recommends supplementing the two Poly-Flo ESA mats with optional BioBalls in the three media nets to increase biological surface area. The BioBalls (sold separately) are the professional-grade upgrade for high-stocking-density installations.
What are the benefits of the 28-inch waterfall spillway?
The 28" reversible waterfall spillway lip on the 29319 creates a professional-grade water curtain across a full 28 inches. The reversible design allows the spillway to be oriented in two directions — providing the option of installing a natural stone spillway where boulders sit directly on the lip, rather than the standard open waterfall configuration. This flexibility makes the SS6000 BioFalls the preferred choice for both traditional waterfall designs and natural boulder waterfall builds.
The patented non-cross-threading screws simplify installation and reduce the risk of stripped hardware during setup or seasonal maintenance. The included fish-safe silicone creates a watertight seal between the BioFalls spillway and the pond liner.
Can the BioFalls 6000 be buried and landscaped around?
Yes — burial is the standard installation method. The SS6000 BioFalls is constructed from rotationally moulded high-density polyethylene (HDPE) with structural ribbing designed specifically for burial. The rounded shape distributes soil and rock pressure evenly around the unit, preventing deformation. The unit is installed with the 28" spillway lip at grade level or slightly above — surrounding boulder work and landscaping conceals the filter body completely.
Dimensions for excavation planning: 40"L × 45"W × 29.5"H, 55 lbs empty. The removable rock and plant tray sits on top and can hold rocks, plants, and gravel to further naturalize the installation.
Shipping note: Due to the 40"×45" footprint, the 29319 ships via common carrier freight. Residential liftgate service may be required.
What maintenance is required for this Aquascape biological filter?
The SS6000 BioFalls® is designed for minimal maintenance. The key principle: avoid over-cleaning the filter, as beneficial bacteria colonies on the Poly-Flo ESA mats are the active filtration element — disrupting them reduces biological performance temporarily.
- Annual spring cleaning: Rinse the Poly-Flo ESA filter mats and media nets with pond water (not tap water) to remove accumulated debris. Tap water chlorine kills beneficial bacteria. Clean once per season at most.
- During the season: The filter runs autonomously as part of the pond's natural nitrogen cycle. No in-season cleaning is typically required.
- Winter: In freezing climates, remove the pump and drain the filter body. The filter housing can remain in place year-round.
- Access: The removable top lid provides access to the rock tray and filter mats without disturbing the boulder work.
Aquascape 29319 Signature Series 6000 BioFalls® Filter — dual 2" bulkhead ports, 28" reversible spillway, up to 15,000 GPH, 2 Poly-Flo ESA filter mats, 3 media nets, rock tray, Limited Lifetime Warranty. 40"×45"×29.5"H, 55 lbs. BioBalls optional (400 capacity). Ships common carrier freight.
Questions about BioFalls sizing, pump pairing, or comparing the 2" vs. 3" bulkhead model? 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
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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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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
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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.
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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.
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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
