UM43 - Uniweld UM43 Harris Style Oxy-Acetylene Mixer for 43 Series Handles

Reliable Flame Control for Your Harris Torch

If you are running a Harris-style rig and need a dependable mixer to keep your flame steady, the Uniweld UM43 Mixer Assembly is the part you need. Designed to fit the popular 43-series torch handles, this mixer is the workhorse that sits between your handle and your tip, blending your oxygen and acetylene just right. We know that a sputtering or uneven flame can ruin a weld or make a brazing job a nightmare; that’s why swapping out an old, clogged, or damaged mixer with a fresh UM43 is one of the best maintenance moves you can make.

Built from solid brass, this thing is tough. It stands up to the heat of the job site and resists the wear and tear of daily use. Whether you are in the shop fabricating brackets or out in the field repairing heavy equipment, you can trust the UM43 to deliver the gas flow you need. It connects easily to your existing handle—just screw it on, attach your tip, and you are ready to light up. It’s compatible with a wide range of welding and heating tips, giving you the flexibility to switch from fine detail work to heavy heating without changing your entire torch setup.

Don't let a faulty mixer compromise your safety or your weld quality. The Uniweld UM43 is a direct fit for handles like the Uniweld 43L9 and Harris 43-2, offering OEM-level performance at a great value. It’s designed specifically for oxy-acetylene setups, ensuring you get that hot, controllable cone you need for steel welding and silver brazing. Keep one in your toolbox as a spare or upgrade your current rig today to experience smoother operation and better flame consistency.

Key Benefits for the Welder

• Direct Fit: No guessing games—fits your standard 43-series handle perfectly.
• Consistent Flame: engineered to mix gases smoothly for a steady burn.
• Heavy-Duty: Brass construction handles the heat and abuse of the shop.
• Versatile: Works with various welding and heating tips for different jobs.