Duotight Push-In Fitting - 8 mm (5/16 in.) x Female Beer Thread

Duotight Push-In Fitting - 8 mm (5/16 in.) x Female Beer Thread

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This Duotight to Female Beer Thread fitting can be used to connect beverage line to faucet shanks instead of a tailpiece, and it's also a convenient option for connecting gas and beverage line to the gas in and bev out on keg couplers. Compatible with EVABarrier 8 mm OD Tubing (D1717 & D1718).
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.

Faucet shank and keg coupler not included.

Kegland Part number: KL06903


Item # DUO104
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.05 LBS
Community Q&A

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Browse 5 questions Browse 5 questions and 62 answers
Why did you choose this?
MoreFlavor Store
rebuilding draught innards after moving and sitting for a long time.,
Mark W on Oct 8, 2021
If you're not already using duotight, you're making things way harder on yourself then it needs to be.
Matthew B on Jul 2, 2021
rebuilding draught innards after moving and sitting for a long time.,
Mark W on Oct 8, 2021
So much easier to manage than clamps.
Christian Aguilar on Jul 8, 2021
If you're not already using duotight, you're making things way harder on yourself then it needs to be.
Matthew B on Jul 2, 2021
Trying out quick connect
Russell Bonsall on Jun 29, 2021
Quick line changes
Gregory J K on Jun 28, 2021
Upgrading beer lines.
Carl S on Jun 9, 2021
the best
Miguel Ugarte on Jun 2, 2021
Fluid out, ease of tuning replacement
William S on May 26, 2021
simple fast connections
Brandon M on May 19, 2021
This works with the EVA Barrier tubing I am using.
Curt G on May 14, 2021
Seems like a good design and decent price and easier than Oteker clamps
THOMAS L on May 8, 2021
To connect a sankey tap to my kegerator
Tom J on Apr 19, 2021
Jockey box conversion
Thomas C on Apr 15, 2021
need kit
Kevin P on Apr 13, 2021
Ease of use
rideordie007 on Mar 31, 2021
wanna try it
jason p on Mar 11, 2021
Ease of use
Valued C on Jan 26, 2021
I have some already and prefer it
Dennis M on Jan 12, 2021
Because my Sanke taps foamed like crazy. These helped a lot.
Paul C W on Jan 9, 2021
Hose too full.
Brian S on Jan 7, 2021
redoing my kezzer and want to simplify my system heard of these on Brulosophy
Paul K on Jan 6, 2021
new keg, need an ecit
Matthew Sabin on Dec 29, 2020
Best deal outside of Australia
Ken S on Dec 24, 2020
Recommended by Brian at Norcal Draft, who is very knowledgeable
Paul C W on Dec 13, 2020
to connect to my faucets
Joshua V H on Dec 13, 2020
To connect EVAbarrier 4/8mm line
James B on Dec 11, 2020
recommended by a friend
Donald A on Dec 10, 2020
Converting connections to Sanke connectors
Marvin Altman on Nov 24, 2020
I heard about these products on Brulosophy
Anthony C on Nov 6, 2020
Upgrading my draft lines.
Eric H on Oct 31, 2020
To simplify my draft setup
Adrian L Febre on Oct 27, 2020
Ive read good comments in Brülosophy about the duotight and eva barrier
Andres D on Oct 25, 2020
Changing my equipment for my kegerator.
Mike D on Sep 2, 2020
Changing my setup
Shaun J on Aug 5, 2020
LUIS FIGUEROA R on Jul 30, 2020
Hopefully will attach to the d style coupler
Daniel H on Jul 28, 2020
Part of DuoTight manifold build
Joseph M on Jun 12, 2020
Fits on a sankey d coupling for commercial beer kegs
Matthew J M on Jun 12, 2020
Looking forward to simplifying my draft line setup
Brian E on Jun 12, 2020
I have need to tap a Sanke keg and these fit right onto a D-style tap with no other hardware!
Matthew S on Jun 6, 2020
Compatible with 4mm ID EVABarrier Tubing which I wanted for proper balance over a very short run.
Matthew K on May 28, 2020
I wish that it came with my sanke taps to begin with.
Ryan Y on May 22, 2020
Looking to retrofit my kegerator with duotight fittings.
Todd M on May 21, 2020
makes adapting to Duotight a breeze !
Sebastian on May 2, 2020
Replacing draft lines
Roger M on Feb 24, 2020
convenient system
Cuong T on Jan 15, 2020
Better pours, and easy to work with.
Charles Wier on Dec 14, 2019
To use EVABarrier tubing on my 6 faucet keezer
David A. T on Oct 17, 2019
Super easy and great clamps and boiling are a pain
Zak H on Oct 14, 2019
part of the duotight system
Mark L on Oct 14, 2019
So much easier to manage than clamps.
Christian Aguilar on Jul 8, 2021
Trying out quick connect
Russell Bonsall on Jun 29, 2021
Can this be used with a 2" shank in a draft tower? The current shanks are the Intertap ones with permanent 90 degree barbs and I am hoping to convert entirely to the Duotight fittings.
Adam E on Jul 25, 2019
Duotight Push-In Fitting - 8 mm (5/16 in.) x Female Beer Thread
Duotight Push-In Fitting - 8 mm (5/16 in.) x Female Beer Thread
Intertap Beer Faucet Shank (Stainless) - Tower Shank
Intertap Beer Faucet Shank (Stainless) - Tower Shank
Beer Faucet Shank (Stainless) - 2 in.
Beer Faucet Shank (Stainless) - 2 in.
BEST ANSWER: The threads on the 2'' shank are 5/8'' BSP threads so the DUO104 unfortunately will not be compatible. However, we will be offering the short tower shanks that have Duotight compatible barbs very soon!
i have this tubing, will it fit with this? Accuflex Bev-Seal Ultra beer line. 3/16' ID
Tom H on Mar 27, 2020
BEST ANSWER: I am personally unfamiliar with the tubing you’re going to use. If the OD is 5/16” and you have a straight cut, push your tubing in until it totally stops. Run a leak test using water. If you need to remove the tubing, the Duotight fitting will release with pressure applied to the circular collar where the tubing is inserted and a firm pull on the tubing. If the duotight fitting on your particular tubing leaks, I recommend what I use and got on on this website, EVABarrier 8mm tubing, D1717 or D1718.
I want to use these in my keezer build. what size shanks should I buy to go through 2x4 leaving enough room to connect these?
John Fitt on May 12, 2020
BEST ANSWER: If you are going through the 2" side of the board then you will be fine with using the 3.5 or 4 inch shank. There will be plenty of space for the lock nut and the tube fitting.
Will this duotight fitting fit this shank? https://www.morebeer.com/products/beer-faucet-shank-5.html Also, do you know when this will be back in stock?
Adam Lund on Jun 25, 2020
BEST ANSWER: This is the correct duotight fitting for beer shanks as well as sanke keg couplers commonly referred to as "Beer Thread".

4.7 / 5.0
18 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
DuoTight Connectors
The DuoTight fittings are the way to go, but with the myriad of sizes for hoses and fittings, regulator barb fittings, keg line requirements for compessation of PSI, metric vs standard, and other connector requirements, it can be really confusing, and over buying will result. It would be nice if there were some standard guide how to employ these fittings, but I am glad with the purchase, nonetheless.
July 2, 2021
4 months ago
Rated 5 out of 5
Works as promised
I upgraded to these and love how simple they are to use.
Just make sure you cut the tube going in very square. My first cut has a little bit on an angle and it leaked. I squared it up and it's been perfect.
June 24, 2021
4 months ago
Rated 5 out of 5
Duotight Push-In Fitting - 8 mm (5/16 in.) x Female Beer Thread
No complaints..does what its supposed to do
June 10, 2021
over 2 years ago
Rated 3 out of 5
I like them, but they are sensitive
First off, I love the ease of the Duotight connectors for changing couplers/disconnects if you switch between commercial kegs and ball lock kegs. What I don't like is how easy it is to over-tighten the fittings and cause a hairline crack that eventually leaks gas - whether right away or after some time/pressure.
June 9, 2021
4 months ago
Rated 5 out of 5
Love these fittings
Great product. We use these in a Piaggio Ape based mobile bar, where lines are often installed and removed same day to support an event. Clean and simple.
June 8, 2021
5 months ago
Rated 5 out of 5
Super easy to use, will keep using this in future
February 11, 2021
8 months ago
Rated 5 out of 5
These are so simple and easy. No leaks
January 21, 2021
9 months ago
Rated 5 out of 5
Helped w/ foaming
Was having considerable trouble with foaming on my Sanke tap and this, along with the new EVA tubing, really helped.
December 26, 2020
10 months ago
Rated 5 out of 5
These fittings worked much better than what we previously had on our kegerator. Some reviews did not like the fittings but so far I am sold on them.
December 16, 2020
10 months ago
Rated 1 out of 5
Bad Batch / Sensitive to Cold??
I had very high hopes for this system but I don't know what happened. Everything connected easily and maintained pressure but about a month in I lost two tanks of CO2. I thought it was bad seals on kegs. Upon hooking up second tank, I got spray everywhere. I disassembled the system and noticed nearly every part was cracked and many are missing teeth. I keep my keezer about 38 to 40 degrees. Perhaps that is too cold for these Aussie made bits?
User submitted image
User submitted image
User submitted image
All connector split in the same general location
User submitted image
November 24, 2020
1 year ago
Response from MoreFlavor
We are sorry for the issues we've had with the duotight fittings. We have had a lot of success ourselves with these. I personally used them everywhere on my new kegerator build and have really enjoyed using them. If is likely that you may have gotten a bad run as it is peculiar that different pieces would crack in exactly the same spot. We would be happy to set you up with replacements under our 1 year wear-and-tear warranty policy. Please reach out to us directly or use our product issues form on our website and we will do our best to take care of the issue. Cheers!
December 6, 2020
Malcolm lieban