DuoTight 8mm To Female Flare

  • Item #Z93
  • Price: $3.99
  • Part #KL06880
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In stock, will ship on Friday, October 7

If you are looking to an alternative to cutting tubing and pressing it over hose barbs with hose clamps, with the resultant difficulty in dissassembly, you might find the DuoTight System interesting. Based on double O ring sealed push in fittings, DuoTight allows easy repeated hose attachment and removal, as well as EVABarrier lined odorless tubing that costs no more than economy PCV tubing.

DuoTight features a patented dual O ring sealing system using high quality EPDM o-rings. The double o-ring means DuoTight have twice the sealing surface surface when compared with other push in fittings. This makes DuoTight even more reliable and reduces the chance of a leak. The double o-ring system also means that you can bend the hose with much tighter radius without causing leaking issues.

Clamps are not needed. To use the DuoTight System, simply cut your EVABarrier tubing to length (cut tubing square for best results, not at an angle), and push into the DuoTight fitting. To remove the tubing, simply press back on the sealing flange and pull the hose out. EVABarrier Hose and DuoTight fittings are rated up to 100 PSI.

This fitting features a ¼" Female Flare for attaching to threaded ball and pin lock fittings, or any male ¼" flare, such as the outlet of a gas regulator.

The fitting seals tight without teflon tape when using plastic ball and pin locks, but you will need to wrap stainless male flare threads is a bit of teflon tape to get them to seal before threading these on.

Compatible with: - EVABarrier 4mm ID x 8mm OD line (item Z91)
                          - EVABarrier 5mm ID x 8mm OD line (item Z92) 

Average rating 7 out of 10 ( based on 4 reviews )

8 mm to flare fitting

Review by James Hazlett on 7/27/2022

I converted my keg system over to these fittings. They are easy to use and don't leak initially. However I have had two of them just outright fail and bust in half after a short period of time. I lost an entire cylinder of CO2 after the fitting on the regulator failed. Use this particular fitting with caution.
William's Brewing Responds: A good thing to do to make sure they are not too tight and stressing the plastic is to hand tighten, and then tighten with a wrench 1/4 of a turn.

Awesome & easy

Review by Stephen on 6/16/2021

I've switched everything in my kegging setup over to duotight and these connectors are awesome! Haven't had an issue with leaking and so easy to insert tubing and remove it. Highly recommended!

All duotight in a new kegerator

Review by John W on 9/20/2019

Used all duotight fittings in a new kegerator build. Unfortunately I had two of these fittings crack in the middle on a gas distribution manifold. Hand tightened and only about another 1/2 turn with wrench on all fitting connections. All were holding pressure initially but after changing a keg from 20 psi to 12 psi, the connector started to leak. Changed to swivels on the gas manifold. I have these fittings on ball lock connectors for gas and liquid and on shank connector with no issues.

1 in 6 started leaking after 3 days of use

Review by Ricardo Fritzsche on 9/18/2019

Bought 6 for gas. Worked ok and then one started leaking in the middle. First time I used them for gas. Will try replacing them with John Guest fittings, and if these ones leak too, will go back to traditional methods for the gas side. On the liquid side, they work as expected for now.

Aug 16, 2020 by Shane

Q: Do these need a nylon washer when connecting to gas regulator or manifold?

A: Generally not, hand tighten and then tighten 1/4 turn with a wrench. In hard to seal cases, you may need to use a bit of teflon tape.

Aug 07, 2020 by Chris

Q: Does this connector work with the Nitrogen regulator?

A: Yes, this works with any 1/4" male flare fitting.

Jul 23, 2020 by Gozie Boy

Q: Regarding Customer Reviews on this item, please confirm whether these are authentic DuoTight products and have two seals, or are they knock offs? Thanks.

A: These are genuine DuoTight products with two seals.

Aug 06, 2019 by RJ

Q: Are these compatible with 5/16" OD lines such as ultra?

A: They should be compatible as 8mm and 5/16 are both 0.31 of an inch.

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