An inline ball valve that provides manual on/off shutoff control in a 3/8″ OD tubing line — quarter-turn handle, push-to-connect on both ends, tool-free. The 3/8″ companion to the 1/4″ valve.

What it does

This inline ball valve installs between two sections of 3/8″ OD tubing and lets you shut off or restore water flow with a quarter-turn of the handle. Isolate a filter, tank, or accessory for service without disconnecting tubing.

Both ends are push-to-connect — cut the tubing square, push it in, done. The straight-through design minimizes restriction when the valve is open. Handle in line = open; perpendicular = closed.

Key benefits

• ✓3/8″ OD × 3/8″ OD quick-connect — fits standard 3/8″ RO tubing
• ✓Quarter-turn handle — fast, definite on/off
• ✓Straight inline design — minimal flow restriction when open
• ✓Isolate for service — shut off one section without disrupting the system
• ✓Works with under-sink RO, inline filters & water filtration setups
• ✓Automatic quantity discounts starting at 2 units

Specifications

Compatibility

Often used with

Good to know before you buy

• Cut tubing square (90°) before pushing into each port.
• Push tubing fully in until it seats. Tug gently to confirm.
• Handle position: in line with the valve body = open; perpendicular = closed.
• Check all connections for leaks before putting the system into service.