Oase AquaMax Eco Premium 3500 Pond Pump – Energy Efficient Submersible Waterfall & Filter Pump
✓ 30-Day Return Period
✓ Price Match - We will Beat Lower Prices!
✓ Secure Encrypted Checkout
✓ Questions? - Call (765) 508-4352
The Oase AquaMax Eco Premium 3500 (SKU 87582) is a German-engineered synchronous electronic pond and filter pump delivering 3,500 GPH with exceptional energy efficiency for small to medium koi ponds, biological filtration systems, and waterfall installations. Featuring Pulse 6 technology — 35% more efficient than the previous AquaMax generation — the 3500 operates at 100 watts and 1.6 amps with patented Seasonal Flow Control (SFC) that automatically reduces wattage by up to 50% as water temperature drops to 40°F. Environmental Function Control (EFC) shuts down the motor if it runs dry or becomes clogged. An integrated grounding plate protects against stray current. Frost-proof to -4°F for year-round operation. Includes multi-hose adapters (1”, 1.25”, 1.5”, Sch40 1.5”–2”) and a 20 ft power cord. 5-Year Limited Warranty (3 years + 2-year extension with free product registration). Made in Germany. Not for swimming pools or salt water. GFCI required.
Why Choose the Oase AquaMax Eco Premium 3500?
- Synchronous electronic motor with Pulse 6 technology: The synchronous motor electronically controls rotor speed for precise efficiency across the full operating range. Pulse 6 uses additional magnets to reduce vibration and deliver 35% greater efficiency than the previous AquaMax generation — at 100 watts, it circulates 3,500 GPH more efficiently than competing asynchronous pumps in this flow class.
- Seasonal Flow Control (SFC) — up to 50% wattage savings: When pond water temperature drops to 40°F, SFC automatically reduces flow and power consumption by up to 50%. Fish require less circulation in cold water; SFC matches pump output to seasonal demand without any manual intervention. SFC can also be controlled via the optional Oase Control App (OC port included).
- Environmental Function Control (EFC): If the pump runs dry or becomes clogged, EFC detects the condition and shuts the motor off before overheating damage occurs. Auto-resets when the condition clears.
- Integrated grounding plate — pond safety: Disperses stray electrical current in pond water, protecting fish and pond owners. Unique to the Oase AquaMax Eco Premium series.
- Dual-intake with mechanical regulator: The second intake connects to a Satellite Filter or in-pond skimmer. The mechanical regulator adjusts secondary intake from 0% to 100% in four stages.
- Submersible or inline: Remove the wrap-around pre-filter and use the included mounting bracket to install inline — no additional accessories required.
- Frost-proof to -4°F: Patented frost protection allows year-round installation without seasonal removal.
Technical Specifications
| Specification | Detail |
|---|---|
| SKU | 87582 |
| Flow Rate | 3,500 GPH |
| Motor Type | Synchronous electronic (Pulse 6 technology) |
| Wattage | 100W (max); up to 50% reduction with SFC at 40°F |
| Amps | 1.6A |
| Voltage | 120V / 60Hz |
| Cord Length | 20 ft |
| Inlet / Outlet | 2” (both) |
| Included Fittings | 1”, 1.25”, 1.5”, Schedule 40 1.5”–2” adapters |
| Solids Handling | Up to ⅜” (0.375”) |
| Dimensions | 13.5”L × 11”W × 6.5”H |
| SFC | Seasonal Flow Control: up to 50% wattage reduction at 40°F |
| EFC | Environmental Function Control: auto-shuts off if dry or clogged |
| Grounding Plate | Integrated — stray current protection |
| Frost Protection | Patented frost protection to -4°F |
| Smart Control | OC port for Oase Control App / Eco Control / Garden Cloud Controller |
| Installation | Submersible or inline (mounting bracket included) |
| Electrical | Requires GFCI-protected 120V outdoor outlet. Not approved for swimming pools or salt water. |
| Country | Germany |
| Warranty | 5-Year Limited (3 years + 2-year extension with free product registration) |
AquaMax Eco Premium Family
All AquaMax Eco Premium models share: synchronous electronic motor, Pulse 6 technology, SFC (up to 50% savings), EFC, dual intake, grounding plate, frost-proof to -4°F, 20 ft cord, 2” inlet/outlet, inline capability, and 5-year warranty. Choose by pond volume and flow rate:
| Model | SKU | Flow Rate | Watts | Amps | Suitable For |
|---|---|---|---|---|---|
| AquaMax Eco Premium 3500 (this) | 87582 | 3,500 GPH | 100W | 1.6A | Small-medium ponds |
| AquaMax Eco Premium 4500 | 87583 | 4,500 GPH | 140W | 2.2A | Medium ponds |
| AquaMax Eco Premium 5500 | 87584 | 5,500 GPH | 160W | 2.4A | Medium-large ponds |
Frequently Asked Questions
How much water does the Oase AquaMax Eco Premium 3500 move at various head heights?
The AquaMax Eco Premium 3500 delivers 3,500 GPH at open flow (0 ft head). Performance at operating head heights is shown in the gallery performance chart. For verified flow rates at specific head heights, refer to the official Oase specification sheet or contact us at (765) 508-4352 for help sizing your pond circulation or filtration system.
What is Oase Seasonal Flow Control (SFC) and how does it save money?
Seasonal Flow Control (SFC) is Oase’s patented temperature-based pump regulation system. When pond water temperature drops to 40°F, SFC automatically reduces the pump’s flow rate and power consumption by up to 50%. Fish are less active in cold water and require significantly less circulation, so SFC matches pump output to actual seasonal demand.
The SFC setting can also be manually adjusted or deactivated via the OC port and optional Oase Control App, Eco Control, or Garden Cloud Controller for year-round manual management.
How does the secondary intake and suction regulator work?
The AquaMax Eco Premium 3500 features a dual-intake design with a second inlet that accepts a Satellite Filter or AquaMax Satellite skimmer connection.
The mechanical flow regulator adjusts the secondary intake from 0% to 100% suction in four stages, allowing one pump to service two areas of the pond simultaneously — eliminating stagnant dead zones and delivering debris from multiple points to the same filter.
Does the AquaMax Eco Premium 3500 have dry-run protection?
Yes. Environmental Function Control (EFC) detects dry-run conditions and significant blockages, automatically shutting the motor off before overheating damage can occur. The pump resets automatically when the condition clears. This protection, combined with the synchronous electronic motor design, makes the AquaMax Eco Premium significantly more durable under stress than direct-drive or asynchronous pumps.
Is the AquaMax Eco Premium 3500 safe for winter use?
Yes. The AquaMax Eco Premium 3500 includes Oase’s patented frost protection that prevents freeze damage down to -4°F (-20°C). The pump can remain installed year-round in climates with winters above -4°F without seasonal removal.
The Seasonal Flow Control (SFC) automatically reduces flow and wattage by up to 50% at 40°F water temperature, maintaining gas exchange and circulation while minimizing power consumption during winter months.
How do I get the 5-year warranty for this pump?
The AquaMax Eco Premium 3500 includes a standard 3-year limited warranty. To extend to the full 5-year warranty (3+2), register your product at Oase North America’s website within 90 days of purchase — registration is free. The 5-year coverage is the industry’s longest for a pond pump in this class. Contact Pond Pro Direct at (765) 508-4352 for warranty assistance.
Why Buy Oase Products from Pond Pro Direct?
- Authentic Oase products with full 5-year warranty coverage
- System design expertise — call for filter pairing, Clear Water Guarantee configurations, and pump sizing
- Price Match on identical products from authorized Oase retailers
Oase AquaMax Eco Premium 3500 (87582) — 3,500 GPH | synchronous electronic | Pulse 6 | 100W | 1.6A | 120V | 20 ft cord | 2” inlet/outlet | adapters included | SFC (up to 50% savings at 40°F) | EFC | grounding plate | -4°F frost-proof | OC port | submersible or inline | 5-year warranty (3+2 registration) | Germany. Pairs with FiltoClear 5200 (SKU 91670). Not for pools/salt water. GFCI required.
Questions about sizing, filter pairing, or Oase system design? 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
