Rigid Plastic Joiner 6mm ID × 8mm OD (5/16”) - 50 mm | Duotight Compatible
This Rigid Plastic Joiner (6 mm ID × 8 mm OD) is designed for straight, solid connections between duotight push-in fittings. Made from strong polypropylene, it provides a far cleaner and more stable alternative to using short pieces of flexible tubing when you need everything perfectly aligned.
At 50 mm long, this joiner is ideal for mounting regulators, manifolds, and gas boards where neatness and rigidity matter. Unlike flexible EVABarrier tubing, this rigid joiner keeps fittings straight and tidy — especially useful for wall-mounted or fixed installations.
The length is carefully chosen so that when fully inserted into two 8 mm duotight fittings, a small exposed section remains, making future disassembly much easier without damaging fittings or tubing.
Note: This listing is for the rigid plastic joiner only. Duotight fitting is sold separately.
Key Features
- Duotight compatible (8 mm / 5⁄16” push-in fittings)
- Made from strong rigid polypropylene
- Ideal for straight, fixed connections
- Cleaner and neater than flexible tubing for mounted setups
- Designed for easy future disassembly
- Perfect for gas boards, regulators, and rigid layouts
Specifications
- Inner Diameter: 6 mm
- Outer Diameter: 8 mm (5⁄16”)
- Length: 50 mm
- Material: Polypropylene
- Colour: Natural / translucent (may vary)
Typical Uses
- Joining two duotight fittings in a straight line
- Gas board and wall-mounted regulator setups
- Rigid manifolds and clean keg system layouts
- Situations where flexible hose would look messy