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Small cylindrical aluminium gas diffuser with slip-on connection and recessed tip seat

Miller Enterprises

Miller Enterprises 300001 Gas Diffuser 1/8 in Recess FasTip

SKU CH-M8G2-2XQA7 MPN 300001

A heavy-duty aluminum gas diffuser with 1/8 in recess for FasTip MIG welding guns

  • Product typeWelding Parts & Supplies
  • Heavy-duty construction withstands demanding MIG welding
  • 1/8 in recess ensures precise contact tip alignment
  • Slip-on connection speeds up nozzle changes
  • Aluminium body resists heat and spatter buildup
  • Compatible with XR-Aluma-Pro and multiple FasTip models

Miller FasTip Gas Diffuser 1/8 in Recess

This Miller Electric gas diffuser carries part number 229670 and fits the FasTip series. It is designed for MIG welding (GMAW) with a slip-on connection and a 1/8 in recess between the diffuser and the contact tip. The component is made of aluminum and has an outside diameter of 0.312 in. It is rated for heavy-duty service.

Suits XR-Aluma-Pro guns using FasTip consumables

Welders running Miller XR-Aluma-Pro or compatible guns numbered 300001, 300003, 300004, 301568, 301569, 301570, 301571, 301572 or 301573 will find the correct fit. Operators using other gun models or different tip series should look elsewhere because the slip-on connection and recess are specific to the FasTip range.

Critical spec: 1/8 in recess for FasTip tips

The single specification that decides compatibility is the 1/8 in recess between the diffuser and the contact tip. Only tips built for the FasTip series match this geometry, so verify the tip series before ordering.

How it compares

Measured against everything we stock in Welding Equipment & Positioners, at today’s prices. Recalculated every night.

Price $29.99
Cheaper than about 63% of the 1,978 comparable items (median $50.99).

Specifications

Product
Brand nameMILLER ELECTRIC
Product typeWelding Parts & Supplies

Questions about this item

How long does the aluminium gas diffuser last under continuous MIG welding duty?

The diffuser carries a heavy-duty rating and is built from aluminium to withstand extended MIG welding sessions.

Does the diffuser run hot or draw extra power during all-day operation?

As a passive aluminium component it adds no electrical load and dissipates heat naturally without active cooling.

Which MIG gun and consumables must I already own for this 1/8 in recess diffuser to fit?

It slips onto Miller XR-Aluma-Pro guns and works with FasTip contact tips and FasTip nozzles.

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