A 3-way tee fitting with mixed port sizes — one 1/4″ OD and two 3/8″ OD quick-connect ports. Splits or combines water lines where different tubing sizes meet. All push-fit, no tools.

What it does

This mixed-size tee has three push-to-connect ports: one 1/4″ OD and two 3/8″ OD. It lets you branch a 1/4″ line off a 3/8″ main run, or merge a 1/4″ line into a 3/8″ system.

Useful in under-sink setups where 3/8″ main lines need a 1/4″ branch for an RO system, fridge, or ice maker tap.

Key benefits

• ✓1/4″ × 3/8″ × 3/8″ QC — mixed-size 3-way tee
• ✓Push-to-connect all 3 ports — tool-free
• ✓Bridges 1/4″ and 3/8″ tubing
• ✓Compact for tight under-sink routing
• ✓Works with RO systems, inline filters, fridges & ice makers
• ✓Automatic quantity discounts

Specifications

Compatibility

Often used with

Good to know before you buy

• Confirm which port is 1/4″ and which are 3/8″.
• Cut tubing square before pushing in.
• O-ring sealed — no tape needed.
• Check all three connections for leaks.