duotight - 6.35mm (1/4'') Screwlock x 8mm (5/16'') - Reducer Elbow

This fitting is a push in fitting so you just push the line in from both sides. It is mainly used where a stronger connection is required on a rigid port.

One side is a standard 8mm (5/16) duotight push in fitting, where the other side is a compression adapted duotight (Screw Lock) for 1/4" / 6.35mm rigid fittings.

This fitting also comes in a duotight 8mm x 8mm Screwlock.

Generation 2 duotight
- Colour Coded Collets (6.35mm [1/4"] = Green ~ 8mm [5/16] = Black ~ 9.5mm [3/8] = Blue)
- Burst pressure is over 300psi @ 25°C
- Material Polyketone (POK) no longer Acetal (like John Guest Fittings)
- Higher Chemical & UV Resistance
- Excellent Gas Barrier Properties with EPDM + Silicone Seals
- Superior Performance in Cold Temperatures
- Easier to fit with Gauge depth indicators >|    |<

Compatible with our:

GREEN 6.3mm Side:

KL25331 - EVABarrier 3mm ID x 6.35mm OD x 12m Roll - Double Wall EVA
KL42758 - Red EVABarrier 3mm ID x 6.35mm OD x 12m Roll - Double Wall Semi-Transparent EVA
KL42789 - Black Lightshield EVABarrier 3mm ID x 6.35mm OD x 12m Roll - Double Wall EVA
KL11143 - 4mm ID x 6.3mm OD PE water line hosing

BLACK 8mm side:

KL06224 - EVABarrier 4mm ID x 8mm OD line
KL06231- EVABarrier 5mm ID x 8mm OD line
KL42741 - Red EVABarrier 5mm ID x 8mm OD line
KL42765 - Black Lightshield EVABarrier 4mm ID x 8mm OD line

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 and a Silicone O-Ring.

Why two different materials?
EPDM has a high gas and chemical resistance, but when chilled it can shrink slightly. Silicone O-Rings are also very chemical resistant but perform far better under sub-zero conditions not losing their shape.
By having the best of both worlds we're making sure there is twice as much sealing surface compared to other push in fittings on the market with just one.
This makes our fittings even more reliable across a multitude of applications 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.

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.