Use the external controller to select the output you want, then install the pump either submersed or inline to suit your system layout. It’s designed for larger water setups where you may want to change the flow through the year or match different plumbing outlet sizes.
✓ 20,000L/H Flow Rate✓ 7M Head Height✓ Feed Mode✓ Energy Saving✓ 2-Year Warranty
Which Pond Size Is the Flow Pro Variable 20000 Suitable For?
The Flow Pro Variable 20000 provides an adjustable 6 000 – 20 000 L/H flow with a 7 m lift, giving you precise control for large ponds, powerful waterfalls, filter systems, and seasonal water management. Use the digital controller to fine‑tune output to suit your feature size and season.
Type of Use
Approx. Pond / Feature Volume
Typical Setup
General Circulation / Oxygenation
15 000 – 50 000 litres (≈ 3 300 – 11 000 gallons)
Large koi or fish ponds; run at 40–70 % for steady movement and strong oxygenation without excessive turbulence
Filtration / Water Cleaning
Up to 40 000 litres (≈ 8 800 gallons)
Feeds big multi‑bay or pressurised filters; adjust flow to match filter capacity, reduce in winter for power savings
Waterfalls / Streams / Fountains
Effective lift up to 6 – 7 m
Run at high speed for bold, full flows in tall waterfalls or long streams; lower output for gentle cascades
Smaller Ponds (< 10 000 litres)
Suitable only at low speed (20–30 %)
Helps maintain healthy circulation without overpowering small features
Tip: To estimate pond volume (L), multiply average length (m) × width (m) × depth (m) × 1 000.
For example, 6 m × 4 m × 1 m ≈ 24 000 L.
Key Features
Engineered for power and efficiency, the AEP-20000 combines professional performance with smart features, making it ideal for demanding water applications from large ponds to advanced hydroponic systems.
Powerful Performance
20,000L/H maximum flow rate.
7-meter maximum head height.
150W power consumption.
Handles solids up to 6mm.
Smart Operation
10-minute feed mode for hassle-free maintenance.
Up to 65% energy savings compared to conventional pumps.
Amphibious installation options (submersible or inline).
External smart controller for precise flow adjustments.
Durability & Protection
Durable ABS plastic construction.
2-year motor warranty for added peace of mind.
Compact size: 31 x 21 x 31 cm (Package Dimensions).
Weatherproof washers and collars ensure watertight connections.
What Does Head Height Mean?
Head Height is simply how high your pump can push water – and the higher it goes, the less flow you get. Check the table to see exactly how the Vari‑Flow Pro 20000 performs at different lift heights when running at full power, so you can match the right setting to your pond or water feature.
The table below shows the approximate flow rates you can expect at common head heights when operating at maximum output (100%). If you use a lower speed on the controller, the flow rates will reduce proportionally, helping you save energy and tailor performance to seasonal needs.
Head Height
Approx. Flow Rate (LPH)
0 m
20,000
1 m
18,500
2 m
16,200
3 m
13,800
4 m
10,900
5 m
7,800
6 m
3,900
7 m (Max Lift)
0
Professional Performance for Demanding Water Systems
Experience unmatched water movement with this high-capacity pond pump. Delivering an impressive 20,000L/H flow rate and 7-meter maximum head height, it powers spectacular waterfall displays and ensures effective circulation in large ponds, hydroponic setups, and aquaponics systems. Its innovative design operates at just 150W, saving up to 65% power compared to traditional pumps—all while maintaining robust performance for continuous, reliable operation.
Maximum Performance
20,000L/H flow capacity.
7-meter head height for vertical applications.
150W power draw ensures efficiency.
Ideal for large-scale systems and demanding settings.
Seasonal Adaptability
Higher flow in summer for waterfalls and circulation.
Reduced flow in winter for energy savings and controlled operations.
Maintains water quality and enhances oxygen levels.
Adjustable flow rate for year-round flexibility.
System Protection
Handles solids up to 6mm effortlessly.
Built with robust ABS plastic for long service life.
Reliable operation in both submersible and inline setups.
Weatherproof seals for worry-free outdoor installations.
Versatile Applications for Professional Water Systems
Designed for optimal performance across a range of applications, this professional-grade pump is perfect for large ponds, stunning waterfall displays, advanced hydroponics, and aquaponics. Its compact dimensions (31 x 21 x 31 cm) allow for discreet installation, while the amphibious design ensures compatibility with both submerged and inline setups. This makes the AEP-20000 ideal for both new installations and upgrading existing water systems.
Pond Circulation
Large garden ponds with high water demands.
Koi ponds requiring substantial circulation.
Commercial water features with intricate designs.
Public water displays for parks and outdoor spaces.
Water Feature Applications
Waterfall pumps with variable flow capabilities.
Stunning fountain displays.
Stream circulation systems.
Pressurized filtration setups for optimal cleaning.
Specialist Uses
Aquaponics and hydroponic systems.
Water distribution for commercial setups.
Irrigation in agricultural environments.
Filtration and biological processing systems.
Smart Features for Effortless Operation
Take control with this pump’s advanced features. Its integrated feed mode conveniently pauses operation for 10 minutes during fish feeding, while the energy-efficient design ensures reduced running costs. Amphibious installation options, combined with durable construction and intelligent flow control via the external controller, ensure seamless operation in any environment, making this pump a professional-grade solution for home or commercial projects.
Feed Mode
10-minute pause cycle for aquarium or pond feeding.
Up to 65% energy savings compared to traditional pumps.
150W maximum power consumption during peak operation.
Eco-friendly design lowers energy usage and costs.
Optimized for long-term savings.
Installation Flexibility
Submersible or inline use for versatile setup options.
Compact dimensions for discreet positioning.
4-meter power cable.
Weatherproof seals for outdoor compatibility.
Quality Assurance & Support
We stand behind the quality and performance of the AEP-20000 with a comprehensive 2-year warranty, ensuring peace of mind with every purchase. Each unit undergoes rigorous testing for reliable performance in demanding environments. Our dedicated technical support team is always ready to assist with installation guidance, troubleshooting, and application suggestions to help you get the most out of your pump.
Comprehensive Protection
2-year warranty coverage.
Quality-tested components.
Reliable materials for long service life.
Designed for professional-grade applications.
Expert Support
Professional technical assistance.
Guidance for seamless installation.
Advice on maximizing performance.
Responsive troubleshooting solutions.
Satisfaction Guaranteed
Professional-grade performance.
Proven reliability in water systems.
Customer-focused support.
Backed by rigorous quality testing.
The Professional Choice for Powerful Water Systems
The AEP-20000 Variable Flow Pond Pump represents a perfect balance of power, efficiency, and reliability for demanding water system applications. With its 20,000L/H capacity, energy-saving technology, and intelligent features, this pump delivers exceptional results across a wide range of environments. Whether maintaining large ponds, powering hydroponics, or creating captivating water displays, the AEP-20000 is the ideal solution for professional-grade performance and versatility.
Complete installation instructions for your high-performance 20,000L/H pump. Follow these steps carefully to ensure safe setup and optimal operation of your professional water system.
Technical overview of your high-performance 20,000L/H pump's operation and internal mechanisms. Understand the professional water movement system that powers your pond.
