High-Efficiency External Pond Pump: The Sequence 4000
The expansive Sequence 4000 series pump design delivers exceptional performance for serious water gardeners and koi enthusiasts. With less than half the power consumption of comparable submersible pumps, this external workhorse significantly reduces your monthly electricity costs while providing reliable, powerful flow.
Why Pond Owners Choose Sequence Pumps
When calculating the true cost of ownership, smart pond keepers look beyond the initial price tag. The Sequence 4000's superior efficiency, industrial-grade construction, and exceptional longevity make it the preferred choice for waterfalls, biological filters, and recirculation systems.
Professional-Grade Features
- Convenient 2" FNPT and buttress thread ports with included unions for easy installation
- Pre-wired with 8-foot, 115V cord set for quick setup
- Quiet, TEFC aluminum motor provides outstanding weather protection
- Dry-run resistant mechanical seals and stainless steel hardware
- Glass-filled polypropylene housing ensures durability
- Made in USA
- Five-year limited
Perfect for Water Features and Koi Ponds
The Sequence 4000 series delivers impressive flow rates with enough head pressure to handle most biological filtration systems and moderately sized waterfalls. From the compact 3600SEQ20 to the powerful 8200SEQ22 model, there's a perfect match for your water feature needs.
Remember: These external pumps require a priming pot (sold separately) and check valve for proper operation. Contact us if you have questions about suction height for your specific installation.
Sequence 4000 Performance Specifications
| Model | Inlet | Discharge | Max Flow (GPH) | Max Head (Feet) | Max Power (Watts) | Max Current (Amps) | Voltage | Motor HP | Motor Enclosure | Impeller |
|---|---|---|---|---|---|---|---|---|---|---|
| 3600SEQ20 | 2" | 2" | 3600 | 20.5' | 227 | 1.9 | 115 | ⅓ | TEFC | 4 |
| 5000SEQ20 | 2" | 2" | 5000 | 20.2' | 263 | 2.3 | 115 | ⅓ | TEFC | 5 |
| 5800SEQ21 | 2" | 2" | 5800 | 21' | 296 | 2.6 | 115 | ⅓ | TEFC | 6 |
| 6800SEQ22 | 2" | 2" | 6840 | 22.2' | 376 | 3.4 | 115 | ½ | TEFC | 7 |
| 8200SEQ22 | 2" | 2" | 8220 | 22.3' | 450 | 4.0 | 115 | ½ | TEFC | 8 |