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

This duotight push fit fitting is 8mm (5/16") Female to Female. The bulkhead with locknut is designed to go through the wall of a tank, housing or wall or panel. Simply fit to wall/panel/vessel and push tube in from both sides to join.

Looking for high quality push in fittings that will seal tight?  duotight are the push in fitting with superior sealing capacity due to the double o-ring sealing design.

Why do we use Double O-rings?
The secret to our superior sealing performance is not just the fact that we use high quality EPDM o-rings but also use two of them.  The double o-ring means we literally have twice the sealing surface surface when compared with other push in fittings.  This makes our fittings even more reliable and reduces the chance of a leak significantly.

The double o-ring system also means that we can bend the hose with much tighter radius without causing leaking issues.  This typically can be an issue with other fittings.  This combination of factors makes duotight fittings the most reliable push fit fittings on the market.

Compatible with our 
- EVABarrier 4mm ID x 8mm OD line
- EVABarrier 5mm ID x 8mm OD line

No clamps necessary! 
We do recommend cutting your hosing straight, not on an angle, to ensure the line has a complete seal. To remove the fitting simply push in the collet and the hose can be removed. These push in fittings are suitable to be used up to 100 psi.