HydroLogic® Stealth-RO™ Quick Connect Float Valve - 1/4in QC

Tool-Free Automated Reservoir Filling for Stealth-RO Systems

The HydroLogic® Stealth-RO™ Quick Connect Float Valve is engineered for integration with Stealth-RO™ reverse osmosis systems, providing automated reservoir filling through a 1/4in quick connect fitting that snaps directly onto Stealth-RO output tubing without tools. The adjustable float allows precise water level setting, and the valve provides reliable shutoff at the set level — preventing overflow and eliminating the need for manual monitoring.

User-friendly installation and maintenance make this a practical, long-term solution for any Stealth-RO operator who wants a hands-off reservoir top-off routine.

Key Features & Benefits

• 1/4in quick connect fitting — pushes directly onto Stealth-RO 1/4in output tubing for tool-free, leak-resistant installation.
• Adjustable water level — set your desired reservoir fill level precisely and the valve maintains it automatically.
• Precision-engineered shutoff — reliable valve action for consistent water quality and reservoir management.
• Prevents overflow — automatic shutoff at the set level eliminates the risk of overfilling during unattended operation.

Who Should Use This

HydroLogic Stealth-RO system owners who want to automate reservoir filling and stop manually monitoring water levels during RO filtration runs.

Compatibility

Designed for: HydroLogic Stealth-RO systems — Requires: 1/4in quick connect tubing. For 3/8in QC systems (Evolution-RO 1000, TALLBoy), use the corresponding 3/8in QC float valve instead.

Frequently Asked Questions

Does this valve work with other RO brands that use 1/4in QC tubing?

Yes — the 1/4in QC connection is standard across many RO systems, so this float valve will work with any compatible 1/4in QC output line. Confirm the tubing OD matches before ordering.

How do I adjust the shutoff level?

Adjust the float arm position to raise or lower the water level at which the valve closes. Test and fine-tune the setting after installation to match your reservoir's exact fill target.

Is there a risk of the valve leaking at the QC connection?

The quick connect design provides a reliable, leak-resistant seal when properly inserted. Ensure the tubing is fully seated into the QC fitting during installation to avoid slow leaks.

When would my Stealth-RO overfill without this valve?

The float valve automatically shuts off flow when the set level is reached, regardless of how fast the RO system produces water. Without it, an unattended reservoir can overflow if no one is monitoring the fill level.