Description
RO Drain Valve – 1/4″ OD Tubing (Fits 1½”–2″ Drain Pipes)
This RO drain valve is designed to connect 1/4″ OD tubing to standard
household sink drain pipes, providing a secure outlet for reverse osmosis (RO)
waste water (concentrate line).
It is compatible with the most common drain pipe sizes found under kitchen sinks:
1½” (most common) and 2″. The valve is typically installed above the
P-trap and allows safe gravity discharge of wastewater from RO and water filtration systems.
Manufactured from durable, corrosion-resistant materials, this drain valve ensures a tight,
leak-resistant seal when properly installed and is suitable for residential and light commercial
applications.
Features
- Fits standard 1½” and 2″ household drain pipes
- Accepts 1/4″ OD tubing for RO waste water line
- Provides secure and controlled drain connection
- Durable, corrosion-resistant construction
- Compatible with most RO and water filtration systems
- Designed for gravity drain applications
Specifications
- Drain Pipe Compatibility: 1½” – 2″
- Tubing Size: 1/4″ OD
- Function: RO waste water drain connection
- Installation Location: Above P-trap on sink drain pipe
- Applications: Undersink RO systems, countertop RO systems, water filtration units
Note: Installation requires drilling a hole in the drain pipe.
For use on drain lines only. Not intended for pressurized water lines.



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