Duotight Push-In Bulkhead Fitting - 8mm (5/16") x 1/4" BSP

Brand: Keg Connection
Part Number: DUOT-129
Price: $4.49

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Duotight Push-In Bulkhead Fitting for Wall and Panel Connections

This bulkhead fitting gives you a clean, leak-free pass-through for 8mm (5/16") EVABarrier hose. Run gas or liquid lines through the wall of a keezer, kegerator, kettle, or control panel and connect them on both sides without cutting into your tubing setup. One side takes an 8mm push-in connection; the other threads with a 1/4" BSP fitting.

Dual O-Ring Seal

The Duotight system uses two O-rings instead of one, which holds a tighter seal and cuts down on the leaks you'll sometimes see with single O-ring push-fit connectors. The body is acetal plastic and the O-rings are EPDM, so it handles both gas and liquid without breaking down. And you don't need clamps. The internal collet and O-rings grip the hose on their own.

How to Use It

  • Cut your hose straight and push it firmly into the fitting until it seats and locks.
  • To disconnect, push back on the collet and pull the hose free.
  • Skip chlorinated cleaners like bleach—they degrade the plastic over time.

It's a straightforward part for anyone building out a draft system who needs to route lines through a barrier and wants a solid, reusable connection on both sides.

Highlights

  • Passes 8mm EVABarrier hose through walls, keezers, and kegerator panels.
  • Dual O-ring seal holds tighter than single O-ring push-fit connectors.
  • 1/4" BSP threaded side for connecting to compatible fittings.
  • No clamps needed—internal collet and O-rings grip the hose.
  • Rated to 150 PSI and 212°F for gas and liquid lines.

Specs

Hose Size
8mm (5/16")
Thread
1/4" BSP
Body Material
Acetal plastic
O-Ring Material
EPDM
Temperature Rating
Up to 212°F
Pressure Rating
150 PSI

Specifications

Hose Size8mm (5/16")
Thread Size1/4" BSP
MaterialAcetal plastic body, EPDM O-rings
Temperature RangeUp to 212°F
Pressure Rating150 PSI
Connection TypePush-in x threaded bulkhead

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Item / Part # Price
Duotight Push-In Bulkhead Fitting - 8mm (5/16") x 1/4" BSP
DUOT-129
$4.49 Add to Cart

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