Power Your Pond Efficiently with Sequence 4000 Series Pumps
Bring unmatched efficiency and durability to your pond system with the Sequence 4000 Series External Pond Pumps — precision-engineered in the USA for powerful flow, quiet operation, and lasting reliability. Designed for koi ponds, water features, and aquaculture setups, these pumps deliver top-tier results with low energy costs.
✔ High-Efficiency Design: Moves more water with less power consumption — saving money every month.
✔ Ultra-Quiet Operation: Runs smoothly and silently, making it perfect for peaceful garden ponds.
✔ Built to Last: Durable TEFC motor and corrosion-resistant housing ensure long-term performance.
✔ Easy Installation: 2″ FNPT & buttress-thread ports with unions simplify setup and maintenance.
✔ Made in the USA: Proudly assembled and tested in Colorado for consistent quality.
Enjoy Long-Lasting Reliability with the Sequence 5800SEQ21
Choose a pump that pays for itself over time. The Sequence 4000 Series External Pond Pumps balance power and precision, offering higher output, cooler operation, and lower long-term maintenance costs than submersible units.
✔ True Cost Efficiency: Engineered for low amperage draw and superior hydraulic performance.
✔ Versatile Options: Multiple flow capacities — from 3,600 to 8,200 GPH — to match any pond size.
✔ TEFC Motor Protection: Totally enclosed, fan-cooled design extends motor life and reliability.
✔ Peace-of-Mind Warranty: Backed by a 5-year limited manufacturer’s warranty.
✔ Professional-Grade Build: Each pump is factory pre-tested for performance and safety.
How MDM 4000 Series Pumps Deliver Consistent, Energy-Efficient Performance
✔ Consistent Flow Control: Maintains strong output even under higher head conditions.
✔ Multiple Models Available: Choose from 3600SEQ20 to 8200SEQ22 for precise flow requirements.
✔ Low-Heat Operation: Runs cool for improved efficiency and motor longevity.
✔ Compact Footprint: Streamlined design fits neatly in pump houses or equipment pads.
✔ Proven Legacy: Trusted brand backed by decades of innovation and customer satisfaction.
Sequence 4000 Series External Pond Pumps: What Comes in the Box
Everything you need comes standard with your Sequence 4000 Series External Pond Pumps!
- Pre-Assembled Pump Unit (3600SEQ20/5000SEQ20/5800SEQ21/6800SEQ22/8200SEQ22)
- 2″ FNPT & Buttress-Thread Ports with Unions
- 8 ft (2.4 m) Power Cord – 115 V
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- Weather-Resistant Motor Housing
- Installation Manual
- Warranty Registration Card
Sequence 4000 Series External Pond Pumps Technical Specifications
| Feature | Detail |
| Model Options | 3600SEQ20 • 5000SEQ20 • 5800SEQ21 • 6800SEQ22 • 8200SEQ22 |
| Inlet / Discharge Size | 2″ FNPT (5.08 cm) |
| Max Flow Rate | 3,600 – 8,200 GPH (13,627 – 31,047 LPH) |
| Max Head Height | 20.2 – 22.3 ft (6.1 – 6.8 m) |
| Max Power Usage | 227 – 450 Watts |
| Max Current Draw | 1.9 – 4.0 Amps |
| Voltage | 115V |
| Motor Type | TEFC (Totally Enclosed Fan-Cooled) |
| Horsepower | ⅓ – ½ HP |
| Impeller Sizes | #4 • #5 • #6 • #7 • #8 (varies by model) |
| Cord Length | 8 ft (2.4 m) |
| Construction | Heavy-duty corrosion-resistant housing |
| Warranty | 5-Year Limited Manufacturer’s Warranty |
| Origin | Made in the USA |
| Dimensions (Approx.) | 18.1″ L × 10.0″ W × 9.9″ H (46 × 25 × 25 cm) |
| Weight | 35 lbs (15.9 kg) |
Sequence 4000 Series External Pond Pumps Manuals:
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- Ships Only to Lower 48 States of the United States