duotight – 8mm (5/16”) Female x 8mm (5/16”) Female Bulkhead with Locknut

This duotight push-fit fitting is an 8mm (5/16″) female-to-female joiner featuring a heavy-duty bulkhead and locknut, making it effortlessly simple to pass lines right through the wall of a tank, housing, or panel. With pure leak-free magic under the hood, all you have to do is secure the bulkhead in place and push your tubing straight in from both sides for an instant, airtight seal. Engineered with robust dual EPDM O-rings, it handles solid working pressures with total ease—no clamps, no hassle, and no stress. Whether you are running draft beer lines, water setups, or custom gas manifolds, this nifty connector delivers tool-free quick connections that hold tight every single time.

Applications & Compatibility

• Line continuity: Keep your 8mm OD line secure through walls up to 22mm – just drill a 20mm hole through and screw this on.
• 8mm OD: Suitable for use with any 8mm OD hose or duotight stem.

8mm Tubing Compatibility

This 8mm duotight fitting is optimised for use with EVABarrier Dual Barrier Line.