Sequence Series 750 Pump - Model 4200SEQ12

A powerful yet energy-efficient external pond pump from the reliable Sequence 750 series. It's an excellent upgrade for customers needing a bit more flow than the 3600 model while maintaining the same compact footprint and low operating costs—perfect for your Live Water Aquariums & Ponds selection.

This pump delivers up to 4,200 GPH at zero head and is well-suited for ponds up to approximately 3,000–4,000 gallons (depending on plumbing, filters, and desired turnover). It provides strong circulation for biological filtration, waterfalls, streams, and overall pond health.

Key Specifications:

• Max Flow Rate: 4,200 GPH
• Max Head Pressure: 12 feet
• Power: 115V, low wattage draw (around 140–160W range), 1/8 HP TEFC motor (totally enclosed fan-cooled for quiet, durable performance)
• Inlet/Outlet: 2" FPT suction / 1.5" FPT discharge
• Cord: 8-foot power cord with molded 115V plug
• Dimensions: Approximately 10.5" L x 6.8" W x 7" H (same compact size as the 3600 model)

Flow Rates at Different Heads (approximate):

• 0' head: 4,200 GPH
• 2' head: ~3,720 GPH
• 4' head: ~3,240 GPH
• 5'–6' head: ~2,700–3,000 GPH
• 8' head: ~2,160 GPH
• 10' head: ~1,500 GPH
• 12' head: ~0 GPH (max head)

Recommended Applications

Great for medium-sized ponds or features requiring higher turnover rates (often 1–2 times per hour or more for smaller systems). The 4200SEQ12 handles moderate head pressure effectively from filters, UV sterilizers (like your Aqua Ultraviolet units), and plumbing runs. Its efficient design keeps energy use minimal while the robust motor ensures years of dependable service.

Like the rest of the Sequence 750 series, it's assembled in the USA with quality components, emphasizing longevity and low cost of ownership. It pairs seamlessly with your other professional equipment for complete pond and aquarium systems.

Features & Benefits:

• Highly energy efficient — saves on electricity compared to many similar pumps
• Quiet, reliable TEFC motor with stainless steel hardware
• Easy plumbing and maintenance
• 3–5 year limited warranty (varies by retailer)
• Compact and powerful for its size

When customers want a little extra flow without increasing power consumption or complexity, the Sequence 4200SEQ12 is an outstanding choice. It's a proven performer for water gardens, koi ponds, and aquariums.