HydroLogic® Evolution-RO™ Barbed Float Valve - 1/2in

Set-and-Forget Reservoir Filling for Evolution-RO Systems

The HydroLogic® Evolution-RO™ Barbed Float Valve gives Evolution-RO system users a simple, reliable way to automate reservoir filling on any tank with a 1/2in barbed inlet. A fully adjustable float arm lets you set your precise water level, and the valve mounts horizontally or vertically to fit a variety of tank configurations. Built entirely from plastic and stainless steel — materials HydroLogic notes perform better than brass in RO purified water environments — for long-term corrosion-free performance.

Key Features & Benefits

• 1/2in barbed connection — slides directly onto 1/2in tubing from Evolution-RO systems for a secure, straightforward installation.
• Fully adjustable water level — bend the float arm to set your exact desired fill level with precision.
• Horizontal or vertical mounting — versatile orientation options adapt to your specific tank design and available space.
• All plastic and stainless steel — corrosion-resistant materials specified by HydroLogic as superior to brass in RO purified water contact.
• Automatic shutoff — float closes the valve when the set level is reached, preventing overflow without monitoring.

Who Should Use This

HydroLogic Evolution-RO™ system owners who want automated, unattended reservoir filling for any storage tank or hydroponic reservoir with a 1/2in tubing inlet.

Compatibility

For HydroLogic Evolution-RO™ systems. 1/2in barbed fitting. Mounts horizontally or vertically. Compatible with any tank or reservoir using 1/2in barbed fittings.

Frequently Asked Questions

Why plastic and stainless instead of brass for RO water?

RO purified water is aggressive toward metals due to its low mineral content. Plastic and stainless steel components resist corrosion better than brass in long-term RO water contact.

How do I connect this to my Evolution-RO system tubing?

Slide the 1/2in barb into compatible 1/2in tubing from your Evolution-RO system output. A hose clamp is recommended to secure the connection.

Can I use this float valve with a different RO system?

Yes — any system with 1/2in tubing output is compatible with this barbed float valve, regardless of brand.

What is the adjustable range for the float arm?

The float arm can be bent to adjust the shutoff level across a practical range of several inches; specific range depends on your tank depth and float arm geometry.