H2Flow Controls Introduces Nautis™ VSF

The Nautis™ VSF Variable Speed + Flow Pool Pump is the first pool pump engineered to measure and control actual water flow, not just motor speed. Powered by Eco-Flow® technology, Nautis™ VSF delivers precise, constant circulation that automatically adapts as pool conditions change — without guesswork, external automation, or wasted energy.

The Nautis™ VSF by H2Flow Controls is built for homeowners who want energy efficiency, smart control, and long-term equipment protection without the cost or complexity of full pool automation. It is the only constant-flow pool pump using Eco-Flow® technology to maintain accurate circulation, optimize heater performance, reduce energy and water waste, and protect pool equipment automatically.

The Problem: Traditional Pool Pumps Guess

Most pool pumps rely on fixed RPM settings. Pool owners are told to “set a speed and hope for the best,” even though plumbing layouts, filter conditions, and equipment loads constantly change. This guesswork leads to:

• Wasted electricity from fixed RPM settings that don’t adjust to real-world conditions
• Inconsistent water quality caused by fluctuating circulation
• Reduced heater and heat pump efficiency due to unstable flow
• Excessive backwashing that leads to unnecessary water loss
• Premature wear on pumps, filters, and plumbing components

More settings don’t solve the problem. Accuracy does.

The Solution: Nautis™ VSF with Eco-Flow® Technology

Nautis™ VSF is the first adaptive constant-flow pool pump designed to automatically adjust motor speed based on real-time flow measurement.

Instead of locking in a fixed RPM, Nautis™ VSF maintains a precise gallons-per-minute flow rate. As filters get dirty, valves are adjusted, or system resistance changes, the pump adapts automatically to maintain proper circulation — without manual recalibration.

This intelligence is built directly into the pump, not added later through external automation.

What Makes Nautis™ VSF Different From Traditional Variable-Speed Pumps?

Traditional variable-speed pumps control speed. Nautis™ VSF controls flow.

Nautis™ VSF maintains constant circulation accuracy within approximately ±2%, ensuring predictable turnover, even chemical distribution, and stable system performance as conditions change. Pool owners set the desired flow or turnover, and the pump continuously adjusts to maintain it.

The result is cleaner water, reduced chemical waste, and consistent circulation without constant adjustment.

“Our new Nautis VSF isn’t just another variable speed pump — it’s the first truly adaptive flow pump designed specifically for the realities of today’s pool systems,” said Gavin Hackett, CEO of H2Flow Controls. “By automatically adjusting to changing conditions like filter loading and system demand, Nautis VSF maintains constant flow without the guesswork. The result is optimized performance, improved energy efficiency, and a better overall experience for pool owners and operators. It’s a smarter, more responsive approach to circulation that reflects where our industry is headed.”

Built-In Smart Control Without Expensive Automation

Many “smart” pool systems require costly automation panels and complex installations. Nautis™ VSF eliminates that requirement.

The pump includes built-in micro-automation and connects through the BlueSync™ app or web interface, allowing homeowners to:

• Monitor real-time pump performance
• Adjust operating modes without adding an external automation panel
• Receive alerts and performance notifications instantly
• Manage turnover rates and boost cycles with precision control

No separate automation controller is required.

The Best Pool Pump for Heat Pumps and Heaters

Heat pumps and heaters require stable, specific flow rates to operate efficiently. Fluctuating flow causes cycling, inefficiency, and unnecessary wear.

Nautis™ VSF maintains a steady, exact flow rate, making it an ideal pool pump for heat pump systems. Unlike standard variable-speed pumps, it does not require a bypass valve and automatically adapts to maintain optimal heater performance while reducing energy waste.

Equipment Protection Through Constant Flow

Fluctuating circulation stresses filters, heaters, and plumbing. Nautis™ VSF stabilizes the entire system.

The pump continuously monitors flow conditions and detects abnormalities such as blockages or sudden flow loss. If a problem is detected, Nautis™ VSF can shut down automatically and notify the homeowner, helping prevent costly damage before it occurs.

Energy and Water Efficiency That Adjusts in Real Time

Traditional energy-efficient pumps lose efficiency as system conditions change. Nautis™ VSF compensates continuously.

By maintaining precise flow instead of overspeeding, Nautis™ VSF reduces unnecessary energy consumption, minimizes excessive backwashing, and alerts owners when maintenance is actually needed — saving both water and electricity over time.

Designed for Easy Maintenance and Long-Term Reliability

Nautis™ VSF is engineered for real-world ownership and serviceability, featuring:

• LED-lit pump lid for fast, at-a-glance inspection
• Four-bolt, service-friendly housing design
• Integrated lid lock ring with ergonomic grip points
• Safe dry-run capability for up to one hour
• Wet-tested at the factory before shipment

These features simplify maintenance while extending equipment life.

Simple Installation and Broad Compatibility

Nautis™ VSF is designed as a true drop-in replacement, making upgrades straightforward without re-plumbing.

Compatible installations include:

• Direct drop-in replacement for Hayward® Super Pump®
• Compatible with Pentair® SuperFlo® and WhisperFlo®
• Included risers for flexible height matching
• Quick-disconnect unions and internal thread connections

This reduces installation time and labor costs while modernizing pool performance.

Who Should Choose the Nautis™ VSF Pool Pump?

Nautis™ VSF is ideal for:

• Homeowners looking to lower energy costs through precise flow control
• Those who want smart functionality without full automation systems
• Pools operating heat pumps or heaters that require stable flow
• Owners seeking built-in equipment protection
• Anyone prioritizing long-term reliability and simplified maintenance

Long-Term Value, Built In

Manufactured in the United States and engineered with precision, Nautis™ VSF reflects H2Flow Controls’ commitment to smarter, more responsible pool technology. By measuring and controlling what actually matters — flow — it delivers consistent circulation, lower operating costs, and confidence over the life of the pool.

For homeowners searching for the best energy-efficient pool pump, the best constant-flow pool pump, or a smart pool pump that works seamlessly with heat pumps, Nautis™ VSF stands apart as the only pump that replaces guesswork with accuracy.

Learn more at www.h2flow.net.