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How to Make PEX Compression Connections





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Published on Jan 5, 2012

Compression fitting assemblies come in three parts; nuts with threads on the inside, ferrules (or rings), and inserts. Compression fitting assemblies use R20 or R25 thread depending on the fitting.

To make a connection, first slide the nut onto the tubing, then the ferrule and finally the insert. Screw the nut tightly into the insert around the ferrule to secure the fitting assembly to the tubing. Be sure to use a wrench to tighten the connection. Now you'll have one unit of a fitting assembly with threads on one end.

We offer compression fittings that work with standard PEX , as well as Multicor compression fittings that work with PEX Aluminum Pex. Creating connections with Pex-Al_PEX also requires a Chamfering tool.

For more information on connection systems, tools and fittings, visit our website,, or email

Music by Incompetech
Song - "Plain Loafer" ISRC: US-UAN-11-00111
Licensed under Creative Commons 3.0


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