OASE Waterfall Pump 5150 High-Flow Pond & Waterfall Pump
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Description
The OASE Waterfall Pump 5150 (SKU 45424) is a high-performance synchronous magnetic-drive submersible pump purpose-built for pond waterfalls and pondless water features. At 5,150 GPH maximum with a 23-foot maximum head, it handles large residential waterfalls and extended multi-tier features at only 230 watts — exceptional energy efficiency for its output class.
OASE’s engineering differentiates this pump from generic submersible alternatives: the grounding plate eliminates stray electrical current from pond water, replaceable coated magnetic rotors extend service life in hard water, the self-cooling back-spitting rotor chamber prevents overheating under sustained load, and tool-less volute removal makes cleaning a two-minute task. Backed by a 3-year total warranty (2 years standard + 1 year with free online registration).
Key Features & Benefits
Technical Specifications
| Specification | Value |
|---|---|
| SKU / MPN | 45424 |
| Max Flow Rate | 5,150 GPH |
| Max Head Height | 23 ft |
| Flow at 5 ft Head | ~4,300 GPH |
| Flow at 10 ft Head | ~3,450 GPH |
| Motor Type | Synchronous magnetic drive (oil-free) |
| Wattage | 230W |
| Voltage | 120V / 60Hz |
| Safety Listing | cULus — GFCI outlet required |
| Cord Length | 20 ft (compact plug for discreet routing) |
| Outlet | 2” MIPT |
| Outlet Step Adapter | 1.5” and 2” — included |
| Inlet | 2” |
| Hose Connection | 1.5” and 2” |
| Coarse Debris Handling | Up to approx 1/6” |
| Filter Intake Surface | 150 cm² |
| Dimensions (approx L × W × H) | 9.4” × 5.4” × 6.5” |
| Weight | 8.80 lbs |
| Installation | Submersed only (not inline-capable) |
| Not Approved For | Swimming pools or saltwater |
| Warranty | 3-Year Total: 2 years standard + 1 year with free online product registration |
OASE Waterfall Pump Family Comparison
| Model | SKU | Max Flow | Max Head | Watts | Inline? |
|---|---|---|---|---|---|
| Waterfall Pump 1650 | 45421 | 1,650 GPH | 16 ft | 40W | No |
| Waterfall Pump 2300 | 45422 | 2,300 GPH | 16 ft | 77W | No |
| Waterfall Pump 3700 | 45423 | 3,700 GPH | 19 ft | 127W | No |
| Waterfall Pump 5150 ← This | 45424 | 5,150 GPH | 23 ft | 230W | No |
| Waterfall Pump 6600 | 45425 | 6,600 GPH | 26 ft | 340W | Yes |
| Waterfall Pump 8000 | 45426 | 8,000 GPH | 29 ft | 400W | Yes |
All models share: grounding plate, replaceable coated rotors, tool-less volute removal, ceramic shafts, self-cooling back-spitting rotor chamber, 20 ft cord, 3-year warranty, synchronous magnetic drive motor. The 6600 and 8000 additionally support inline (dry-mount external) installation.
Frequently Asked Questions
What is the maximum flow rate and head height of the OASE Waterfall Pump 5150?
The OASE Waterfall Pump 5150 (SKU 45424) delivers a maximum flow of 5,150 GPH with a maximum head height of 23 feet. Flow rate decreases as head height increases — at 5 ft of head, output is approximately 4,300 GPH; at 10 ft of head, approximately 3,450 GPH. For installations where your waterfall height is 10 ft or more, size your pump based on the reduced flow at your actual head height rather than the maximum 5,150 GPH figure.
What makes the OASE Waterfall Pump different from standard mag-drive pumps?
The OASE Waterfall Pump 5150 is a synchronous magnetic-drive pump with several features not found on standard submersible mag-drive pumps:
- Grounding plate — eliminates stray electrical current from entering the pond; a unique OASE safety feature
- Replaceable coated magnetic rotors — individually replaceable when worn; rotors are coated to resist hard water scale
- Self-cooling back-spitting rotor chamber — fine particles flush continuously through the rear of the pump, cleaning shafts and bearings while cooling the motor
- Tool-less volute removal — all moving parts accessible for cleaning in minutes without tools
- Ceramic shafts and bearings — superior resistance to mineral scale vs plastic or metal equivalents
Can the OASE Waterfall Pump 5150 be used in swimming pools or saltwater?
No. The OASE Waterfall Pump 5150 (SKU 45424) is rated for freshwater pond and pondless water feature applications only. It is not approved for use in swimming pools or saltwater. For pool applications, use a pump specifically rated for chlorinated or saline environments. A properly grounded GFCI-protected electrical outlet is required for all OASE waterfall pump installations.
How do I maintain the OASE Waterfall Pump 5150?
OASE designed this pump for minimal, tool-free maintenance:
- Volute removal: Twist off the volute cover (tool-free) to access the impeller and rotor. Rinse in pond water to clear debris accumulation.
- Rotor inspection: Check the coated magnetic rotor for scale buildup. If performance drops in hard water, soak in a mild acid solution (white vinegar diluted in water) to dissolve mineral deposits — rinse thoroughly before reinstalling.
- Grounding plate: Inspect the grounding plate connection annually to ensure the grounding wire remains secure.
- Winterize: Remove from the pond in freezing climates. Store in a frost-free location in a bucket of water to keep seals moist.
What fittings are included and what pipe sizes are compatible?
The OASE Waterfall Pump 5150 ships with two adapters:
- 1.5” adapter — for connection to 1.5” flexible or rigid pipe
- 2” adapter — for connection to 2” flexible or rigid pipe
The base pump outlet is 2” MIPT (male iron pipe thread). For the 5,150 GPH maximum flow, Aquascape and OASE both recommend using at least 2” pipe to minimize friction loss — stepping down to 1.5” at the maximum rated flow will cause meaningful head loss reduction.
What is the warranty and how do I extend it to 3 years?
The OASE Waterfall Pump 5150 includes a 2-year standard warranty from the date of purchase. An additional 1-year extension (totaling 3 years) is available at no cost by registering your pump online at OASE’s product registration website with your proof of purchase. Registration should be completed promptly after purchase to ensure the extension is captured from the original purchase date.
Why Buy from Pond Pro Direct?
- Authentic OASE products with full 3-year warranty (register for the extra year)
- Expert pump sizing guidance — 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.
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
