E99-320C13 - Miller CGA 320 CO2 Tailpiece with Filter and Washer

Reliable CO2 Connections for Your Welding Setup

When you are welding with pure CO2, whether for specific MIG applications or flux-cored welding, the integrity of your gas connection is paramount. The Miller E99-320C13 Tailpiece is the exact replacement part you need to keep your regulator connected securely to your gas cylinder. Over time, the threads on your regulator's tailpiece can become worn, or the sealing face can get nicked, leading to frustrating gas leaks that waste expensive shielding gas and can compromise your weld quality. This genuine Miller replacement part restores your equipment to factory condition, ensuring you can focus on laying beads rather than chasing leaks.

This isn't just a standard brass nipple; it comes fully plated for extra durability and a professional look that matches your high-end Miller equipment. One of the standout features of this tailpiece is the built-in filter. Gas cylinders can sometimes contain small debris or 'tank scale' from the bottom of the cylinder. If this debris gets into your regulator, it can cause the pressure to creep or damage the internal seat, ruining the regulator. The integrated filter in this tailpiece acts as a first line of defense, catching that debris before it causes expensive damage. It's a small part that plays a huge role in protecting your investment.

The kit comes ready to install with the necessary sealing washer included. Remember, CGA 320 connections for CO2 are different from Argon/CO2 mix connections (CGA 580); they require a washer to seal properly. Because this package includes the washer, you don't have to hunt around for spare parts—you have everything you need to make the seal right out of the box (nut sold separately if you don't aready have one). Whether you are repairing an old regulator or building a custom gas manifold, trust Miller OEM parts to provide the safety and reliability your shop demands.

Installation is straightforward for anyone familiar with gas apparatus. Simply remove the old tailpiece from your regulator body, clean the threads, and install the new E99-320C13. Ensure you use the new washer provided when connecting to the tank. Keep a spare in your maintenance kit so a damaged fitting never shuts down your production line.