H2Flow Launches New Products For 2026 Pool Season

As the 2026 pool season approaches, H2Flow is making it clear they’re not standing still.

When we caught up with Sean McDermott, Executive Vice President of H2Flow, on the Pool Magazine Podcast, the conversation quickly moved beyond incremental upgrades. What emerged was a focused strategy: build intelligent water control solutions that simplify the lives of pool professionals while delivering measurable efficiency gains for homeowners.

With LevelSmart gaining traction, the launch of the Nautis VSF variable speed pump, and the introduction of FillStop, H2Flow is now addressing the full lifecycle of water management — from initial fill to daily circulation and long-term maintenance.

Doubling Down on LevelSmart: The Autofill That Changed the Conversation

Before discussing the new releases, McDermott reflected on the momentum behind LevelSmart.

“LevelSmart is a wireless autofill system, and by wireless we mean we’ve taken the sensor and essentially disconnected it from the rest of the system,” he explained.

By separating the sensor from the control hardware, H2Flow removed one of the biggest barriers in autofill retrofits: tearing up decks or disturbing finished surroundings. The sensor can be installed in a pool, spa, fountain, or other vessel without invasive construction.

“It’s an autofill device that can be installed in any pool at any stage of the construction or even after it’s been built,” McDermott said.

For pool professionals, that means faster installs and more retrofit opportunities. For homeowners, it means reliable water levels without manual oversight.

But H2Flow saw a bigger opportunity — what happens after the water is in the pool?

Nautis VSF: Moving From Constant Speed to Constant Flow

At the Pool & Spa Show in Atlantic City, H2Flow officially introduced the Nautis VSF variable speed pump — and it drew a crowd.

McDermott described it as “a big project for us,” explaining that while variable speed pumps are now mandated and widely adopted, the industry has largely focused on RPM — not actual water flow.

“We’re combining it with our flow meter to achieve not just a constant speed, but a constant flow,” he said.

“Flow is really what’s important in a pool system, not the speed of the motor.”

Traditional VS pumps operate at preset speeds. As filters load up or water features are activated, flow drops — often unnoticed. The Nautis VSF, paired with H2Flow’s FlowVis mechanical flow meter and digital sensor, measures real-time flow and adjusts motor speed automatically to maintain it.

The result isn’t just energy efficiency — it’s precision circulation.

EcoFlow: Intelligent Energy Savings Without Guesswork

At the heart of the Nautis VSF system is EcoFlow technology, a concept rooted in H2Flow’s commercial VFD experience.

“EcoFlow technology uses our FlowVis mechanical flow meter along with the FlowVis digital sensor, takes that data and processes it so that the VFD controls the speed of the motor based on a required flow,” McDermott explained.

“Instead of guessing at programming speeds, users input pool volume and desired turnover rate,” explained McDermott.

Select a 12-hour turnover and the system calculates the necessary gallons-per-minute rate automatically. Even if the filter gets dirty or water features are turned on and off, the pump maintains constant flow.

The impact goes beyond electrical savings. When flow drops in a constant-speed system, chemical dispersion suffers and algae risks increase. Constant flow maintains both energy efficiency and water health.

The MCU: A Focused Automation Brain

The ideal Nautis setup integrates three components: the Nautis VSF pump, the Nautis Motor Control Unit (MCU), and FlowVis.

The MCU acts as a compact automation system specifically for pump and heater control.

Through the BlueSync app or browser interface, users can select constant speed, constant flow, or turnover modes. Unlike traditional pumps that infer flow from electrical data, the MCU uses real flow readings.

“We know exactly what the flow is and we’re able to run it precisely at that flow,” explained McDermott.

H2Flow is also developing compatibility with other variable speed pumps.

“Any pump that can be run off of an RS-485 Modbus connection can interface with the Nautis MCU,” McDermott said.

That opens the door for pool pros to upgrade existing systems into constant-flow solutions without investing in full-scale automation platforms.

Built-In Features That Pool Pros Actually Asked For

Beyond advanced control logic, Nautis VSF includes thoughtful, field-driven upgrades.

The LED-lit pump basket is more than cosmetic.

“It’s very useful. If you’re out late at night… or early in the morning before the sun’s come up, you can just hit the light and check,” McDermott said.

The flip-down lid handles provide added leverage, making maintenance easier for both homeowners and service techs.

H2Flow also integrated heater control into the MCU. With temperature probes and a simple connection, the system ensures minimum flow requirements are met during heating cycles.

“When the heater turns on, we’re going to make sure that the pump is running at that minimum flow to protect the heater,” McDermott explained.

After additional rep feedback, H2Flow added scheduled high-flow programming for in-floor cleaning systems — functionality often reserved for high-end automation systems.

FillStop: Solving a Costly Service Problem

While Nautis VSF optimizes daily circulation, FillStop tackles a common and expensive issue: unmanaged pool fills.

“FillStop was born from feedback from pool professionals,” McDermott said.

Pros frequently asked if LevelSmart could handle initial pool fills. Technically yes — practically no. Large fills would take far too long.

The solution: a portable automated fill system housed in a Pelican-style case.

“What we created is a tool… that you can connect a garden hose to and put the sensor in the pool where you want the water to stop,” McDermott explained.

For service companies managing dozens or even hundreds of pools, this is a liability reducer.

“You’re either relying on the customer… or going back to the house constantly to check on the level of water,” he said.

Overfills can damage property, disrupt neighbors, and even lead to litigation. FillStop removes that risk while eliminating unnecessary return trips.

Real ROI: Time, Efficiency, and Reliability

When asked about return on investment, McDermott broadened the conversation beyond product margins.

“The ROI is not just in the profit of being able to sell the product,” he said.

Instead, it’s about operational efficiency. LevelSmart installs can be completed in roughly 20 minutes. FillStop reduces revisit trips. Nautis VSF lowers energy consumption while stabilizing water quality.

For service companies, time saved is money earned. For homeowners, predictable performance builds trust.

Completing the Water Management Lifecycle

With FillStop handling initial fill, LevelSmart maintaining water levels, FlowVis delivering accurate flow data, and Nautis VSF controlling circulation, H2Flow now offers a modular ecosystem for intelligent water control.

Not every pool requires full automation. H2Flow is targeting the gap between basic equipment and high-end automation systems — offering intelligent functionality without unnecessary complexity.

“Our motto… is intelligent water controls. But the underlying factor is that we are here to make pool pros’ lives easier and to make pool owners’ lives better,” said McDermott.

As the 2026 pool season ramps up, H2Flow’s message is clear: smarter water management isn’t about adding layers of complexity. It’s about removing guesswork, protecting equipment, saving time, and giving pool professionals tools that work as hard as they do.

Ready to take a deeper dive?

Listen to our entire conversation with Sean McDermott, Executive Vice President of H2Flow, on the Pool Magazine Podcast.