Variable Flow Pond Pump - 4,000L/H - 35W
The ultimate high-performance pond pump offering powerful 4,000L/H flow rate and 4.5-meter head height, perfect for small ponds, aquariums, hydroponics, and water features. With energy-saving technology, feed mode functionality, and a compact design, this versatile pump delivers reliable performance that adapts seamlessly to every season and project.
✓ 4,000L/H Flow Rate ✓ 4.5M Head Height ✓ Feed Mode ✓ Energy Saving ✓ 2-Year Warranty
Which Pond Size Is the Variable Flow Pro 4000 Suitable For?
The Variable Flow Pro 4000 provides an adjustable flow range from 1200 to 4000 L/H with a 4.5 m maximum lift, offering precise, energy‑efficient control for small ponds, aquariums, and water features. Its compact design and digital controller allow you to fine‑tune the flow for every season and setup.
| Type of Use |
Approx. Pond / Feature Volume |
Typical Setup |
| General Circulation / Oxygenation |
800 – 3 000 litres
(≈ 175 – 660 gallons) |
Perfect for small ponds or aquariums; run between 60 – 100 % for clear, well‑oxygenated water |
| Filtration / Water Cleaning |
Up to 2 500 litres
(≈ 550 gallons) |
Drives compact pond filters or small pressurised units, maintaining steady turnover for clean water |
| Waterfalls / Streams / Fountains |
Effective up to 3.5 – 4 m lift |
Provides a lively, adjustable flow ideal for tabletop, patio, or garden water features |
| Micro or Indoor Ponds (< 800 litres) |
Use at low speed (30–50 %) |
Gentle circulation prevents turbulence in sensitive fish or planted aquariums |
Tip: To estimate pond volume (L), multiply average length (m) × width (m) × depth (m) × 1 000.
For example, 1.8 m × 1 m × 0.5 m ≈ 900 L.
Key Features
Engineered for power and efficiency, the Variable Water Pump Flow Pro 4000 combines professional performance with smart features, making it ideal for small ponds, aquariums, and compact water systems.
Powerful Performance
- 4,000L/H maximum flow rate.
- 4.5-meter maximum head height.
- 35W 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).
- Compact design for discreet installation.
Durability & Protection
- Durable ABS plastic construction.
- 2-year motor warranty for added peace of mind.
- Compact size: 180 x 85 x 110mm (L x W x H).
- 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 4000 performs at different lift heights when running at full power, so you can match the right setting to your pond, aquarium, 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 the season.
| Head Height |
Approx. Flow Rate (LPH) |
| 0 m |
4,000 |
| 1 m |
3,700 |
| 2 m |
3,200 |
| 3 m |
2,600 |
| 4 m |
1,800 |
| 4.5 m (Max Lift) |
0 |
Professional Performance for Compact Water Systems
Experience reliable water movement with this high-capacity pond pump. Delivering an impressive 4,000L/H flow rate and 4.5-meter maximum head height, it powers small water features, aquariums, and hydroponic setups. Its innovative design operates at just 35W, saving up to 65% power compared to traditional pumps—all while maintaining robust performance for continuous, reliable operation.
Maximum Performance
- 4,000L/H flow capacity.
- 4.5-meter head height for vertical applications.
- 35W power draw ensures efficiency.
- Ideal for small-scale systems and compact 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 Compact Water Systems
Designed for optimal performance across a range of applications, this professional-grade pump is perfect for small ponds, aquariums, hydroponics, and water features. Its compact dimensions (180 x 85 x 110mm) allow for discreet installation, while the amphibious design ensures compatibility with both submerged and inline setups. This makes the Variable Water Pump Flow Pro 4000 ideal for both new installations and upgrading existing water systems.
Pond Circulation
- Small garden ponds with moderate water demands.
- Aquariums requiring controlled circulation.
- Compact water features with intricate designs.
- Indoor or outdoor water displays.
Water Feature Applications
- Small waterfall pumps with variable flow capabilities.
- Compact fountain displays.
- Stream circulation systems.
- Pressurized filtration setups for optimal cleaning.
Specialist Uses
- Hydroponic systems.
- Water distribution for compact setups.
- Irrigation in small-scale 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, ensure seamless operation in any environment, making this pump a professional-grade solution for home or compact projects.
Feed Mode
- 10-minute pause cycle for aquarium or pond feeding.
- Automatic restart function for ease of operation.
- Reduces stress on aquatic life during feeding.
- Microprocessor-controlled timing ensures accuracy.
Energy Efficiency
- Up to 65% energy savings compared to traditional pumps.
- 35W 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.
- 5-meter power cable with UK plug.
- Weatherproof seals for outdoor compatibility.
Quality Assurance & Support
We stand behind the quality and performance of the Variable Water Pump Flow Pro 4000 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 Compact Water Systems
The Variable Water Pump Flow Pro 4000 represents a perfect balance of power, efficiency, and reliability for compact water system applications. With its 4,000L/H capacity, energy-saving technology, and intelligent features, this pump delivers exceptional results across a wide range of environments. Whether maintaining small ponds, powering hydroponics, or creating captivating water displays, the Variable Water Pump Flow Pro 4000 is the ideal solution for professional-grade performance and versatility.
