A 90° push-to-connect elbow that connects a 1/4″ stem port to 3/8″ OD tubing — the cross-size bridge between 1/4″ collet ports and 3/8″ lines. No thread, no tape, both sides push-fit. Sold as a 2-pack.

What it does

This elbow has a 1/4″ stem on one end (plugs into a 1/4″ collet port on an inline filter or membrane housing) and a 3/8″ OD quick-connect on the other (accepts 3/8″ tubing). It bridges the gap between components with 1/4″ QC ports and systems running 3/8″ main lines.

Common use: connecting an inline filter or RO membrane housing that has 1/4″ collet ports to a higher-flow 3/8″ tubing run. The 90° angle keeps routing clean and tight.

Key benefits

• ✓1/4″ stem × 3/8″ QC — cross-size stem-to-tube adapter
• ✓90° elbow — direction change + size transition in one fitting
• ✓No tape, no tools — both connections push-fit
• ✓Bridges 1/4″ collet ports to 3/8″ tubing lines
• ✓Ideal for countertop RO systems & higher-flow setups
• ✓2-pack with automatic quantity discounts

Specifications

Compatibility

Often used with

Good to know before you buy

• 1/4″ stem end: push into the 1/4″ collet port on your inline filter or housing.
• 3/8″ tube end: push 3/8″ OD tubing in until it seats.
• No tape or sealant on either end.
• Note: the live description mentions PTFE tape if installed into a threaded port — if your port is threaded (not a collet), use tape on the threaded connection.