Sequence Series 1000 Pump - Model 3300SEQ21

A versatile, high-efficiency external pond pump from Sequence’s popular 1000 series. It strikes an excellent balance of flow and pressure, making it ideal for a wide range of pond and water garden applications.

With a maximum flow of 3,300 GPH and solid head pressure, this pump is well-suited for medium-sized ponds up to approximately 3,000–5,000 gallons (depending on plumbing losses, filters, and desired turnover rate). It’s a step up in pressure capability from the 750 series while remaining energy-efficient.

Key Specifications:

• Max Flow Rate: 3,300 GPH
• Max Head Pressure: 21 feet
• Power: 115V, efficient wattage draw (typically 200–250W range), 1/8–1/3 HP TEFC motor
• Inlet/Outlet: 1.5" FPT (or 2" on some variants — confirm exact ports for this model)
• Cord: 8-foot power cord with molded 115V plug
• Dimensions: Compact external design for easy installation

Approximate Flow Rates at Different Heads:

• 0' head: 3,300 GPH
• 4' head: ~3,060 GPH
• 8' head: ~2,700 GPH
• 12' head: ~2,280 GPH
• Up to 21' max head

Recommended Applications

Perfect for ponds requiring moderate to higher head pressure (due to elevated waterfalls, longer plumbing runs, or additional equipment like UV sterilizers and filters). It delivers reliable circulation for biological filtration and overall water quality while keeping operating costs low.

Like all Sequence pumps, the 1000 series is built in the USA with a focus on longevity, quiet operation, and low maintenance. The totally enclosed fan-cooled (TEFC) motor ensures durability in outdoor environments.

Features & Benefits:

• Strong balance of flow and pressure for most residential ponds
• Highly energy efficient with low power consumption
• Quiet, reliable TEFC motor with stainless steel hardware
• Easy to plumb and service
  

This model is a customer favorite for its “just right” performance in medium ponds and water features. It pairs very well with our Aqua Ultraviolet units.