Watts (NV-10) RO VLV ADJUSTABLE
NV-10 Adjustable RO Valve
Precision flow control for reverse osmosis systems. The Watts NV-10 lets you dial in exact pressure and flow rates to optimize membrane performance and system efficiency.
Control Where It Counts
Adjustable Restriction
Fine-tune drain line flow to optimize membrane recovery ratio and reduce water waste without compromising product water quality.
Universal Fit
Standard 1/4" quick-connect fittings integrate with most residential and light commercial RO systems from any manufacturer.
Tool-Free Adjustment
Thumb-turn design allows on-the-fly tuning during installation or service without shutting down the system or reaching for tools.
Watts Engineering
Built to the same commercial specifications as Watts plumbing components. Resistant to scale buildup and chemical degradation.
Where It Fits
The Watts NV-10 works with any reverse osmosis system using 1/4" drain line tubing. Commonly installed on systems from Watts, APEC, iSpring, Express Water, Pentair, and others. Use inline on the concentrate (reject) line between the membrane housing and drain saddle. Ideal for tuning systems with flow restrictors that are too aggressive or for replacing fixed restrictors when changing membrane capacity.
Getting It Right
Reduce Waste
Dial back drain flow to cut water consumption without sacrificing TDS rejection rates
Extend Membrane Life
Proper flow balance prevents premature fouling and keeps membranes working longer
Tune for Water Quality
Adjust drain restriction to match your source water TDS and membrane specifications
NV-10 Adjustable RO Valve
Precision flow control for reverse osmosis systems. The Watts NV-10 lets you dial in exact pressure and flow rates to optimize membrane performance and system efficiency.
Control Where It Counts
Adjustable Restriction
Fine-tune drain line flow to optimize membrane recovery ratio and reduce water waste without compromising product water quality.
Universal Fit
Standard 1/4" quick-connect fittings integrate with most residential and light commercial RO systems from any manufacturer.
Tool-Free Adjustment
Thumb-turn design allows on-the-fly tuning during installation or service without shutting down the system or reaching for tools.
Watts Engineering
Built to the same commercial specifications as Watts plumbing components. Resistant to scale buildup and chemical degradation.
Where It Fits
The Watts NV-10 works with any reverse osmosis system using 1/4" drain line tubing. Commonly installed on systems from Watts, APEC, iSpring, Express Water, Pentair, and others. Use inline on the concentrate (reject) line between the membrane housing and drain saddle. Ideal for tuning systems with flow restrictors that are too aggressive or for replacing fixed restrictors when changing membrane capacity.
Getting It Right
Reduce Waste
Dial back drain flow to cut water consumption without sacrificing TDS rejection rates
Extend Membrane Life
Proper flow balance prevents premature fouling and keeps membranes working longer
Tune for Water Quality
Adjust drain restriction to match your source water TDS and membrane specifications
Original: $45.47
-65%$45.47
$15.91Description
NV-10 Adjustable RO Valve
Precision flow control for reverse osmosis systems. The Watts NV-10 lets you dial in exact pressure and flow rates to optimize membrane performance and system efficiency.
Control Where It Counts
Adjustable Restriction
Fine-tune drain line flow to optimize membrane recovery ratio and reduce water waste without compromising product water quality.
Universal Fit
Standard 1/4" quick-connect fittings integrate with most residential and light commercial RO systems from any manufacturer.
Tool-Free Adjustment
Thumb-turn design allows on-the-fly tuning during installation or service without shutting down the system or reaching for tools.
Watts Engineering
Built to the same commercial specifications as Watts plumbing components. Resistant to scale buildup and chemical degradation.
Where It Fits
The Watts NV-10 works with any reverse osmosis system using 1/4" drain line tubing. Commonly installed on systems from Watts, APEC, iSpring, Express Water, Pentair, and others. Use inline on the concentrate (reject) line between the membrane housing and drain saddle. Ideal for tuning systems with flow restrictors that are too aggressive or for replacing fixed restrictors when changing membrane capacity.
Getting It Right
Reduce Waste
Dial back drain flow to cut water consumption without sacrificing TDS rejection rates
Extend Membrane Life
Proper flow balance prevents premature fouling and keeps membranes working longer
Tune for Water Quality
Adjust drain restriction to match your source water TDS and membrane specifications














