This straight joiner is designed to securely connect two 8mm (5/8″) outer diameter (OD) hoses end-to-end, or to attach an 8mm OD hose to a rigid, 8mm duotight-compatible post. It provides a reliable, leak-free connection suitable for a variety of gas and liquid tubing setups, ensuring smooth, uninterrupted flow through your system.
Applications & Compatibility
- Hose to Hose: Join two 8mm OD hoses together.
- Hose to Barb: Join an 8mm barb to an 8mm OD hose – useful for certain pressure gauges and Quick Swivel barbs
- Barb to Barb: Why not join a Quick Swivel barb to a pressure gauge?





