Duotight Push-In Fitting - 8 mm (5/16 in.) Ball Valve

Duotight Push-In Fitting - 8 mm (5/16 in.) Ball Valve

In Stock
Delivers to ( change ) by as part of our Fast & Free Shipping.
Faster Shipping Available. Details.
60 day no hassle return policy. Details

This Duotight ball valve can be used as an inline shut off valve on draft lines. 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.

Kegland Part number: KL06934

Item # DUO101
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.05 LBS
Community Q&A

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 13 answers
Why did you choose this?
MoreFlavor Store
i like to see if they work on my sap lines?????
Stephen John R on Mar 6, 2023
To shut the flow off
Jason W on Feb 21, 2023
i like to see if they work on my sap lines?????
Stephen John R on Mar 6, 2023
switching my Tap Rite regulator to DuoTight.
Alastair B P on Mar 2, 2023
To shut the flow off
Jason W on Feb 21, 2023
set up new gas line
Daryl T on Feb 11, 2023
Christopher D on Feb 8, 2023
For ice maker line shutoff
James W on Feb 7, 2023
Need a way to turn the gas off to the commercial kegs.
Eric Steadle on Jan 31, 2023
Shutoff valves from my regulators.
Eddie M on Jan 10, 2023
adjust the flow of gas
Nobody Important on Nov 12, 2022
Want to be able to shut individual lines.
Eric C on Oct 20, 2022
To close tubing
Ben D on Oct 19, 2022
To set up my kegging solution
Steven Simpkins on Oct 12, 2022
to shut off draft
Michael G on Oct 3, 2022
michael h on Sep 23, 2022
Husband asked for his 39th b-day gift
Kaila S on Sep 22, 2022
Heather B on Aug 27, 2022
Mark P on Aug 15, 2022
Shut-off between keg and miniregulator
Steven Johnson on Aug 5, 2022
5/16 valves not available elsewhere
Fred W S on Aug 2, 2022
The quality materials and the double "o" ring seal
Robert h on Jul 28, 2022
I wanted to be able to control pressure on each keg individually with my new Kosmos Kegerator.
Brian English on Jul 8, 2022
David B on Jun 17, 2022
Need for 4 tap komos
Patrick S on Jun 13, 2022
To stop flow during oxygen free transfer, from Fermzilla to a keg. Easier to stop flow with a valve when its about to pickup sediment, then popping off the QD.
Peter Dietz on Jun 9, 2022
I need them.
Kevin K on Jun 8, 2022
Only place I could find a 5/16th inch valve for the refrigerator water dispenser
Audra W on May 11, 2022
first one to know that there is 8mm parts
Michael on May 2, 2022
stop the flow
Mark L on Apr 22, 2022
Easy air line shutoff for cleaning the beer lines.
Kenneth D H on Apr 20, 2022
Works well
Brett C on Apr 16, 2022
for water conditioner tubing
Martin D on Apr 15, 2022
To shutoff beer line
Gil P on Apr 7, 2022
Protect my reg.
Valued C on Apr 6, 2022
it works well for my gas system
greg m R on Mar 24, 2022
converting a used kegerator to new/modern beer lines
David J on Mar 10, 2022
shut off gas
Nicholas L on Jan 5, 2022
Only one I found
Rodney F on Dec 27, 2021
Changing my gas distribution system.
Joe Ormand on Nov 15, 2021
Part of a gas manifold for an 8 tap kegerator build.
Kyle Heon on Nov 2, 2021
Adding another tap
Jason W on Sep 21, 2021
Reworking my lines
Jeffrey Lee P on Aug 24, 2021
Building a system to inject finings into my kegs without oxygenation risk
Ethan C on Aug 18, 2021
To shut off gas before regulator
Steve M on Aug 14, 2021
I have leaks in my Duotight CO2 system and I'm trying to troubleshoot them.
Sean K on Aug 13, 2021
For my boat
Robert D on Jun 28, 2021
Gas shut off
Victor B on Jun 10, 2021
Turn off gas lines not in use, in case of leaky ball-lock valves when not connected.
Bradley M on Jun 9, 2021
simple fast connections
Brandon M on May 19, 2021
Using this to help do a closed siphon transfer from the fermenter to kegs.
Curt G on May 14, 2021
Using in closed transfer from fermenter to kegs.
Daniel W on Feb 26, 2021
switching my Tap Rite regulator to DuoTight.
Alastair B P on Mar 2, 2023
set up new gas line
Daryl T on Feb 11, 2023
Can this be used as a CO2 shutoff?
Guillermo Jimenez on Oct 29, 2020
BEST ANSWER: Yes it can, as long as you are connecting it to 8mm tubing. The tubing needs to be very round and free of defects. Tubing that is slightly oval in the cross section may leak and you will lose all of your CO2. This happens a lot when the tubing is coiled too tightly and stored or shipped in that state.
If I have this inline with a secondary regulator, do I also need a check valve?
Scherzinger Andy on Dec 23, 2020
BEST ANSWER: If you want to have a check valve you will need an extra one. This valve will allow flow in either and both directions at all times.
Can this be used to restrict the flow of beer thru my taps?
Alpha Zulu on Nov 27, 2022
BEST ANSWER: Since this is a ball valve design, it's not really meant to be used as a flow restrictor. I haven't tried this out, but I suspect you will get a lot of foaming if you try to use this as a flow restrictor on your beer lines. Flow restriction valves are typically needle valves and this gives more surface area to restrict the flow allowing for less foaming. You also probably wouldn't get very fine restriction adjustments because you only have a 90 degree range of motion on the valve and the flow restricting portion of that range of motion will only be 5 degrees or so.

4.6 / 5.0
10 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Push In Fitting Ball Valve
Great easy to use fitting. Use on the keg to tap lines. Keep the lines shut off just incase they get bumped when not in use.
February 8, 2023
1 year ago
Rated 5 out of 5
Works great! Perfect for kegerator CO2 lines to kegs
January 19, 2023
1 year ago
Rated 5 out of 5
Duotight Push-In Fitting - 8 mm (5/16 in.) Ball Valve
Added these to shut the Co2 off between the regulator and the keg. Seems to work.
August 30, 2022
1 year ago
Rated 5 out of 5
Excellent shut-off valves
I use these to isolate certain lines if I need to refill a container which is empty; it allows me to not have back-pressure and also to not make a mess.
User submitted image
Added Oct 5, 2021
October 5, 2021
over 2 years ago
Rated 1 out of 5
Flimsy. Broke one trying to install one.
June 23, 2021
over 3 years ago
Rated 5 out of 5
The Bidet I was installing has hot and cold water. I located the cold water ball valve at a local DIY store, but the hot water hose was 8mm-5/16, which I could not find anywhere. Also, the hose hookup on the Bidet was 8mm as well, or I would have just changed it out completely. Searching endlessly until I came across MoreBeer website and I discovered exactly what I needed to complete my Bidet installation. Without the ball valves to control the water pressure, It is like a pressure washer hitting the bullseye. Not a pleasant experience. The DuoTight Push-in Fitting-8mm Ball Valve works great. Thanks MoreBeer, Two Thumbs up!
February 9, 2021
over 3 years ago
Rated 5 out of 5
coolant systems
I use them to regulate air to my lathe and mill coolant systems
October 20, 2020
over 3 years ago
Rated 5 out of 5
Perfect little valve
Easy way to connect EVA Barrier tubing. Perfect fitting to help me direct CO2 to purge kegs while fermenting or keep a keg under CO2 pressure while cold crashing.
August 21, 2020
over 3 years ago
Rated 5 out of 5
Great build, and a useful addition to the keezer build :)
July 9, 2020
over 4 years ago
Rated 5 out of 5
Awesome affordable connections
These things are great. Instead of buying a 4 -way manifold, just use these fittings and some tubing to build your own for just a few bucks!
September 12, 2019
over 4 years ago