HydroLogic® Evolution-RO™ 1000 & TALLBoy® Quick Connect Float Valve - 3/8in QC

Hands-Free Reservoir Fill for High-Output Evolution-RO and TALLBoy Systems

The HydroLogic® Evolution-RO™ 1000 & TALLBoy® Quick Connect Float Valve automates reservoir and tank filling for HydroLogic's high-output RO and filtration systems. The 3/8in quick connect fitting snaps directly onto Evolution-RO 1000 and TALLBoy 3/8in tubing without tools, and the adjustable float lets you dial in your exact desired water level.

The valve can be mounted vertically or horizontally for flexible installation in tight equipment spaces, and stainless steel and PVC components keep it corrosion-resistant and long-lasting in continuous RO water contact.

Key Features & Benefits

• 3/8in quick connect fitting — tool-free snap connection to Evolution-RO 1000 and TALLBoy 3/8in output lines.
• Adjustable water level — set the float to your desired reservoir level for precise, unattended fill control.
• Vertical or horizontal mounting — flexible installation orientation adapts to your tank geometry and equipment layout.
• Stainless steel and PVC construction — corrosion-resistant materials for long service life in RO purified water contact.

Who Should Use This

HydroLogic Evolution-RO 1000 and TALLBoy system owners who want to automate reservoir filling and eliminate manual top-off routines.

Compatibility

For use with: HydroLogic Evolution-RO 1000 and TALLBoy systems — Requires: 3/8in quick connect tubing. Also compatible with any filtration system using 3/8in QC tubing output.

Frequently Asked Questions

Does this valve work with other RO systems besides HydroLogic?

Yes — any system with a 3/8in quick connect tubing output is compatible with this float valve, regardless of brand. Match the tubing OD rather than the system brand when checking fit.

Can I mount this valve sideways?

Yes — the valve supports both vertical and horizontal mounting orientations to accommodate various tank configurations and equipment room layouts. Choose whichever orientation gives the float arm clear room to travel.

How do I adjust the water level setpoint?

Bend the float arm up or down to raise or lower the shutoff level until it matches your desired reservoir fill height. Test after installation and fine-tune as needed.

Is this valve compatible with the Stealth-RO?

No — this valve is sized for the Evolution-RO 1000 and TALLBoy (3/8in QC). For Stealth-RO systems, which use 1/4in QC tubing, use the HydroLogic Stealth-RO Quick Connect Float Valve instead.