1/4 in. Single Barb Union Tee
Sizes in This Series
Single mini barb brass union tees. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1/4 in. (this page) | 21151 | $8.99 | — |
| 3/8 in. | 21155 | $1.97 | Add to cart |
Overview
The MPN 21151 is a brass single mini barb union tee that joins three runs of 1/4 in. poly or plastic tubing at a 90-degree branch. All three legs carry a 1/4 in. mini barb, letting you tee off a tubing line without adapters or extra couplings.
Technical Specifications
| Manufacturer Part # | 21151 |
| Fitting Type | Single Mini Barb Union Tee |
| Connection 1 | 1/4 in. Mini Barb |
| Connection 2 | 1/4 in. Mini Barb |
| Connection 3 | 1/4 in. Mini Barb |
| Max Operating Pressure | 150 psi |
| Operating Temperature | -40 to 160 °F |
| For Use With | Polyethylene and plastic tubing |
Materials of Construction
| Body | Brass |
| Fabrication | Machined |
Typical Applications
Used to branch or combine 1/4 in. poly tubing in instrumentation, pneumatic, dosing, and light fluid-handling systems. Each barbed leg grips soft tubing and is typically secured with a small clamp for vibration resistance on low-pressure runs.
Cross-Reference and Interchange
This single barb union tee cross-references to these competitor and industry part numbers: 07064-02, 07064-04, 1064X4, 224-4, 29MBT-2, 64DB-2, 64MB-4, 9644, 964-4, D4644, D464-4. Replacing one of these? Match nominal size, connections, and rating, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
Frequently Asked Questions
How many tubing runs does it join?
Three runs of 1/4 in. polyethylene or plastic tubing at a 90-degree branch.
Are all three legs the same size?
Yes, all three legs are 1/4 in. mini barb.
Do I need clamps?
A small clamp or tie on each barb is recommended for vibration or warm-line service.
⚠ WARNING: This product can expose you to chemicals including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.