21701 - ESAB 21701 O-Ring Replacement Kit - 0.070 ID (10-Pack)

Stop Leaks and Save Gas with ESAB 21701 O-Rings

Every welder knows the frustration of a hissing torch or a weld that turns out porous despite perfect settings. Often, the culprit is a tiny, worn-out O-ring that costs pennies but causes dollars in wasted gas and rework. The ESAB 21701 O-Ring pack is your solution for keeping your welding torch air-tight and performing at its best. This kit includes 10 replacement O-rings, sized specifically at 0.070 inches ID by 0.070 inches thick, which is a common size for TIG torch back caps and internal gas connections.

Over time, the heat from welding and the friction of changing out tungsten or back caps can dry out, crack, or flatten the rubber O-rings in your torch. When this happens, air can be sucked into the shielding gas stream (venturi effect), causing oxidation and soot on your welds. By keeping a pack of ESAB 21701 O-rings in your toolbox, you can swap out a bad seal in seconds. Simply remove the old O-ring, check the groove for debris, and roll the new one into place. A tiny dab of O-ring lubricant can help it seat properly and last longer.

These O-rings are designed to fit specific ESAB and potentially other brand torches that utilize this standard size. Whether you are running a water-cooled setup or a standard air-cooled rig, maintaining your seals is the first step in troubleshooting gas coverage issues. Don't let a ten-cent part ruin a critical weld; keep your equipment sealed and ready to arc with this essential 10-pack.

Maintenance Tip

Inspect your O-rings every time you change your tungsten or nozzle. If the O-ring looks squared off, cracked, or feels hard and brittle, it's time to replace it. A fresh, round, and pliable O-ring ensures a snug fit and optimal gas flow.