NAUTIS™ VSF · POOL PUMP REPLACEMENT GUIDE
Replacing Your Pool Pump?
Make It an Upgrade.
Your Hayward®, Pentair® or Sta-Rite® pump may be ready for replacement. Nautis™ VSF gives you a smarter way forward, designed around many familiar pump installations.
Find your current pump in the selector below, see the recommended Nautis model and its installation considerations, then shop directly. Beyond the fit, Nautis measures actual water flow and automatically adjusts speed to maintain the precise GPM you choose.
Pool Nation nominee: Variable Speed Pool Pump of the Year
Pool Nation nominee: Industry Innovation of the Year
Featured on Pool Magazine Podcast, The Pool Guy Podcast Show & Talking Pools.
Replacement-Ready
Nautis™ VSF
Self-Priming Adaptive Flow™ Pump
Replacement-Ready Design
2″ suction and discharge ports · Included base plate riser · Engineered models for both 115V and 230V residential applications.
Interactive Selector
Which Pump Are You Replacing?
Select the brand, pump family and model you have now. We’ll show a recommended Nautis™ VSF pump and key installation considerations before you buy. Don’t see your exact pump? Choose “Other / not sure” or use the fallback calculator.
Find Your Replacement
Match your existing equipment pad in 3 simple steps.
Not listed? Get a preliminary Nautis match. Choose the electrical supply and, for 220V, the existing pump's total horsepower range.
This is a starting recommendation based on electrical supply and horsepower, not a confirmed plumbing or hydraulic match.
YOUR MATCH
Recommended Nautis™ VSF Replacement
NAU-V165
$1,899
Recommendation based on the model selected. Confirm total horsepower, voltage and equipment-pad fit before ordering.
Total Horsepower
1.65 THP
Supply Voltage
115V or 230V
Riser Required?
No — included in box
Why This Is an Upgrade
- Measures actual GPM instead of assuming flow from RPM alone
- Adaptive Flow™ automatically adjusts speed as conditions change
- BlueSync™ shows live flow rate, pump speed, power draw and runtime
- Can reduce energy use by avoiding unnecessarily high pump speed
Make this replacement count. Many conventional pumps run at a set speed, even when the amount of water circulating changes. Nautis™ VSF measures actual water flow and automatically adjusts its speed to help maintain the flow you choose. You’re upgrading from controlling pump speed to controlling water flow.
Installation & Plumbing Notes
Port considerations
Plumbing / fitment notes
2-Year Warranty
Full manufacturer warranty coverage on every Nautis™ VSF.
Assembled in USA
Assembled in the United States by H2flow Controls.
Fitment Assistance
We confirm model selection and voltage before you purchase.
Real Support
Dedicated customer service team ready to assist your installer.
Don’t see your pump listed?
Nautis™ VSF may still be a fit. Replacement compatibility is determined primarily by the existing pump’s total horsepower, supply voltage, plumbing connection size, equipment-pad footprint and vertical fit—not RPM alone.
- Start with your current brand, model number and voltage
- Check connection size and general equipment-pad layout
- Send us a photo if you want help confirming the best next step
Model number not listed? Send us the existing pump model or a photo of the equipment pad and we’ll help you identify the next step.
Technology Comparison
A Replacement Pump That Knows How Much Water Is Moving.
Ordinary variable-speed pumps operate at a selected RPM. But RPM alone cannot tell you how much water reaches your filter, heater and pool. Nautis™ VSF uses its integrated FlowVis® meter to measure actual GPM, then Adaptive Flow™ adjusts motor speed to help maintain the target you select.
Set the Goal. Nautis Handles the Speed.
Choose the flow rate you want or set a turnover goal based on your pool’s volume and circulation schedule. Nautis automatically adjusts pump speed as conditions change, helping keep circulation aligned with your settings.
| Behavior | Nautis™ VSF | Conventional Replacement |
|---|---|---|
| You set | Desired GPM | RPM |
| The pump measures | Actual water flow | Motor speed |
| When filter begins loading | Nautis senses the change | Flow can decrease at fixed RPM |
| When valve position changes | Nautis adapts | Flow may change at fixed RPM |
| Actual GPM | Continuously measured | Not measured by RPM alone |
| Adjustment | Automatic | Often requires manual speed changes |
Simple Drop-In Engineering
Made for the Equipment Pad You Already Have
Replacing a pump should not automatically mean rebuilding the equipment pad. Nautis™ VSF was dimensioned with several common pump families in mind, so many installations are straightforward drop-in replacements.
2" Connections
Every Nautis™ VSF uses 2" suction and discharge ports with internal threads and quick-disconnect unions included.
Riser Included
Replacing a taller pump? The base plate riser ships with every Nautis™ VSF in the box for WhisperFlo® and IntelliFlo® retrofits.
115V or 230V
The 1.65 THP NAU-V165 accepts either 115V or 230V, ideal for replacing older 115V pumps without electrical panel upgrades.
Built for Service
Four-bolt housing, integrated handle, quick-disconnect unions, ergonomic lid lock ring, and an internal basket LED.
Three Adaptive Flow Models Available
NAU-V165
1.65 THP · 115V / 230V
NAU-V270
2.7 THP · 230V
NAU-V345
3.45 THP · 230V
Model sizing depends on the existing equipment and the pool's hydraulic requirements; total horsepower alone is not a complete fitment check.
Adaptive Flow Payoff
More Confidence in Every Gallon — and More Value From Every Run Cycle.
Adaptive Flow™ continuously responds to measured flow instead of assuming that a fixed motor speed will always deliver the same circulation.
Every Nautis™ VSF includes a FlowVis® flow meter, FlowVis digital sensor and Adaptive Flow™ motor controller. Measured-flow control comes built in, not as separately purchased add-ons.
Consistent circulation
Flow can remain aligned with the turnover target instead of quietly changing as hydraulic conditions change.
More predictable heater operation
Heating equipment depends on water flow. Nautis gives the system a measured flow target rather than relying on an assumed relationship between RPM and GPM.
Energy-aware operation
When less speed is required to maintain the target flow, Nautis can reduce it rather than continuing to operate at a higher RPM than the system needs. That can help reduce energy use, especially compared with older single-speed operation. Actual savings depend on the pool, schedule and system conditions.
Visibility and control
BlueSync™ gives owners and service professionals access to live flow rate, pump speed, power draw and runtime information, so the system is easier to monitor and adjust.
Know Which Pump You're Replacing?
Skip the guesswork. Match your current model to Nautis and go straight to the recommended pump.
Find My Nautis Replacement Industry Accolades
Recognized Across the Pool Industry
Nautis™ VSF is earning national attention not just as a replacement pump, but as a fundamentally smarter way to control pool circulation and water quality.
- Nominated by Pool Nation for Variable Speed Pool Pump of the Year
- Nominated by Pool Nation for Industry Innovation of the Year
- Featured on the Pool Magazine Podcast, The Pool Guy Podcast Show and Talking Pools Podcast.
Got Questions?
Questions Before You Order
Compatibility, wiring and installation details matter. Here are answers to the questions most likely to affect your replacement decision.
Will Nautis™ VSF fit my existing plumbing?
Nautis™ VSF uses 2" suction and discharge ports with internal threads and quick-disconnect unions. Many common modern installations can therefore be accommodated without rebuilding the equipment pad, although existing plumbing and the pump being replaced determine the final installation requirements. Taller WhisperFlo® and IntelliFlo® applications use the included riser and require discharge-side replumbing.
Does the riser cost extra?
No. The base plate riser is included with every Nautis™ VSF pump in the box. It is only needed on taller-pump replacements, but it is included either way at no additional charge.
How do I know which Nautis model replaces mine?
Start with the replacement selector above. Nautis models should be matched using total horsepower (THP) and actual system requirements rather than relying solely on the nominal horsepower printed on an older motor. If anything is unclear, send H2flow Controls or your dealer the model number or a photo of your equipment pad before ordering.
I’m replacing a 115V pump. Do I need an electrical upgrade?
Not necessarily. The NAU-V165 accepts either 115V or 230V. NAU-V270 and NAU-V345 require 230V. Your installer or electrician should confirm the existing circuit and installation requirements.
Will Nautis work with my pool automation?
Yes. Nautis™ VSF provides discrete switch inputs for integration with most major automation platforms, while setup, scheduling, target-flow selection and connected monitoring are handled seamlessly through the BlueSync™ app.
What is the warranty, and where is the pump made?
Nautis™ VSF carries a 2-year limited manufacturer warranty. The pump is assembled in the United States by H2flow Controls.
Your Next Pump Can Do More Than Replace the Old One.
Choose a pump engineered for common replacements—and one that measures the actual water moving through your pool. Start with the pump you own, review your Nautis recommendation, and upgrade with complete confidence.
Need help confirming fit? Send us your pump model or pad photo before ordering.