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Duotight Push-In Fitting - 8 mm (5/16 in.) x 1/4 in. Flare

Duotight Push-In Fitting - 8 mm (5/16 in.) x 1/4 in. Flare

Item currently out of stock

This Duotight fitting with 1/4" Flare is perfect for flared gas and beverage ball lock and pin lock disconnects. It can also be used to connect gas line to the flare fitting found on the KOMOS® CO2 Regulator. Compatible with EVABarrier 8 mm OD Tubing (D1717 & D1718).
The Duotight fitting does not require a flare washer. See the instructions below for how to ensure a leak-free connection when attaching to flare fittings.
Duotight fittings are high-quality push-in fittings that seal tight and offer superior sealing capacity due to the double O-ring sealing design.
High Performance Double O-Ring Design:
The secret to Duotight’s superior sealing performance comes from the fact that they use not one, but two high-quality EPDM O-rings.  The double O-ring means they have literally twice the sealing surface when compared with other push-in fittings.  This makes them more reliable and significantly reduces the chance of leakage.
The double O-ring system also means that tubing can be bent at a much tighter radius without causing leaking issues, which can be an issue with other fittings.  This combination of factors makes Duotight the most reliable push-in fittings on the market.
EPDM offers excellent chemical resistance for a longer life span. When compared with silicone and vinyl, EPDM has much better gas transmission rates, better wear resistance, and is BPA-free.
No Clamps Necessary!
We recommend cutting your tubing straight, not on an angle, to ensure the line forms a complete seal. To remove the fitting simply push in the collet and the hose can be removed.
  • Insert tubing and firmly push to connect
  • Easily release tubing by pushing in the collet
  • Suitable for both gas & beverage applications
  • Made from food-grade acetal plastic
  • Double O-rings made from highly chemical resistant EPDM
  • Locking teeth made from stainless steel
  • Pressure rated to 150 psi
  • Temperature rated to 212°F (100°C)

Please note: exposure to chlorine will degrade the acetal plastic and stainless steel these fittings are made from. Do not use in contact with bleach or other chlorinated cleaning chemicals.

Ball lock fitting and regulator not included.

Item # DUO106
Shipping Eligible for Free Shipping Program
Availability Out Of Stock
Weight 0.05 LBS

Community Q&A

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Browse 3 questions Browse 3 questions and 41 answers
Why did you choose this?
MoreFlavor Store
Always need more, love these.
Reid G F on Mar 25, 2020
for new tap, seems easier than Oekiter
Roger M on Feb 20, 2020
Always need more, love these.
Reid G F on Mar 25, 2020
regulator adaptor for use in gas manifold
Dan P on Mar 13, 2020
for new tap, seems easier than Oekiter
Roger M on Feb 20, 2020
To make changing lines much easier.
Joseph Dauria on Feb 7, 2020
Easy Installation
Steven Z on Feb 5, 2020
Michael D on Jan 31, 2020
To have push to connect on all fittings in my new kegerator
Kevin Ramey on Jan 25, 2020
simplicity, ease of use
Mark F on Jan 24, 2020
These make setting up the komos kegerator a breeze!
Jennifer M on Jan 1, 2020
Better pours, and easy to work with.
Charles Wier on Dec 14, 2019
Trying something new, looks easy
Mark D on Dec 13, 2019
Make a jumper
Dwain Pannell on Dec 13, 2019
Setting up new draft system
Joseph M on Dec 10, 2019
adapt for ball lock keg fittings and manifold fittings
Ben B on Nov 30, 2019
Trying it out
David R on Nov 16, 2019
To use with the BlowTie
Keri L on Nov 1, 2019
Easy to use no leaks love jt!
Zak H on Oct 26, 2019
Adapts current fittings to EVAtubing
Dwain Pannell on Oct 24, 2019
Best available
Raymond Stieber on Oct 22, 2019
To use EVABarrier tubing on my 6 faucet keezer
David A. T on Oct 17, 2019
part of the duotight system
Mark L on Oct 14, 2019
Upgrading my system
Robert H on Oct 3, 2019
Went with the EVA barrier tubing I bought.
Jason H on Aug 28, 2019
draft system
Chris G on Aug 28, 2019
Complete the system
Wayne M on Aug 28, 2019
Gas line connections
garrett shuck on Jul 22, 2019
saw demo at HomebrewCon - beer fridge remodel
Dave C on Jul 16, 2019
Ease and quickness of connecting beer lines
Brendon M on Jul 13, 2019
I'm going with push-in fittings for Tap line cleaning
Bob Z on Jul 11, 2019
Quick and easy kegerator setup
Steve T on Jun 3, 2019
Fits my new keggerator lines
Steven Kendall on May 2, 2019
Superior Duotight double o-ring sealing
Chris T on May 2, 2019
for the beer lines included in my series 4 kegerator
Marvin W on Apr 24, 2019
regulator adaptor for use in gas manifold
Dan P on Mar 13, 2020
To make changing lines much easier.
Joseph Dauria on Feb 7, 2020
Do these fittings work with any tubing or do I have to "retube" my kegarator with the EVA tubing?
Clifton Shoemaker on Jul 10, 2019
BEST ANSWER: You would need tube inserts to use these fittings on soft vinyl tubing.
I see how this attaches to tubing. How does it attach to the ball lock keg fitting?
david semo on Sep 23, 2019
The DUO106 connects to a 1/4" flare fitting. It threads onto MoreBeer's KEG720, KEG730 or others with a 1/4 male flare fitting. I didn't use a washer with theKEG730. Also I picked up a foot of 8mm (5/16") tubing at the local Ace Hardware for 19 cents, since I was only using the DUO106 with the Blotie FE960 spunding valve and there was to be no contact with beer.

4.7 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Great product quality, no leak!!!
March 30, 2020
1 month ago
Works great
These push-in fittings work great with the EVA tubing.
February 27, 2020
1 month ago
Sometimes you need a washer
Sometimes requires a flare washer for metal male flare fittings. Yes, I followed the instructions, hand-tightend the fitting, checked for leaks, turned 180 degrees with a wrench, checked for leaks, etc. Would only seal with a washer. Of course it works with pin or ball lock adapters, they have a built-in washer.
February 19, 2020
It's always good to use the right products to do the job
Recently I bought an Intertap tower system from my local homebrew shop. The kit came with line and pinch clamps to use over all of my barbed fittings. This was not the right way to hook it up and as a result of many leaks I spent a few pennies and did it the right way. I don't regret it for a minute. I'm finally leak free!!
January 31, 2020
2 months ago
Super simple to use. No issues.
January 28, 2020
2 months ago
Great product, as far as ease. However, they can leak if the tubing has a curve or is weighted... Certainly a barb fitting is better for permanent arrangements but for use under a few psi (LODO), these are good.
January 22, 2020
3 months ago
Clean and Easy
Starting to really love this Duotight system. Replaced all 8 of my liquid lines this last weekend with Duotight and EVA tubbing all from MoreBeer. Super easy to work with and looks really nice.
January 20, 2020
2 months ago
Perfect fit. Makes changing lines fast and easy.
December 1, 2019
4 months ago
Duotight or duit wrong
Duotight fittings work for co2. So much easier than heavy tubing. And even better for beer through a tap. Not too much foaming and easier to clean.
November 15, 2019
5 months ago
Worth their weight in gold
Good grief these are a blessing. I burnt my hand trying to fit the keg beer lines into the fittings because these Duotights were on back order. When they came in it was like butter putting the fittings on. Worth every penny
August 24, 2019
10 months ago