639965 - ESAB Purox Style Mixer #55 for W-300 Torch Handles

Get Your Flame Back on Track

If your Purox W-300 torch is sputtering, popping, or just not holding a flame like it used to, the problem might be in the mixer. The ESAB Mixer #55 (639965) is the direct replacement you need to get back to smooth, buttery welds. This isn't some cheap knock-off; it's the real-deal ESAB part designed to fit your W-300 handle perfectly. When you're out in the shop or on a job site, you don't have time to mess around with leaky seals or inconsistent flames. You need gear that works as hard as you do.

Built from heavy-duty brass, this mixer can take the heat. It sits between your torch handle and the welding tip, doing the heavy lifting of blending your oxygen and acetylene (or other fuel) into the perfect mixture. A good mixer is the difference between a clean, hot flame and a frustrating day of fighting your equipment. The #55 is sized right for general welding and heating jobs, giving you the versatility to tackle everything from thin sheet metal to thicker plate repairs depending on the tip you attach.

Installation is a breeze. The O-rings are designed to seal tight with just a firm hand-tightening, so you can swap it out quickly if you're changing setups. Don't risk your safety or your weld quality with worn-out equipment. A fresh mixer ensures your gas flow is smooth and your flame is stable, helping you lay down better beads and heat metal more efficiently. Keep your W-300 running like a champ with this essential upgrade.

Why Choose the ESAB #55?

• Perfect Fit: Designed specifically for the Purox W-300 handle—no guessing games.
• Built Tough: Solid brass construction resists wear and heat damage.
• Safe Operation: Reliable seals prevent leaks and reduce flashback risks.
• Versatile: Works with a variety of welding and heating tips for different jobs.