Western Enterprises AW-431 Inert Arc Water Hose Coupler, 5/8"-18 LH Female

Reliable Connections for Water-Cooled Welding Setups

When you are setting up a water-cooled TIG torch or managing industrial air lines, the integrity of your connections is paramount. The Western Enterprises AW-431 Hose Coupler is the professional's choice for extending or repairing hoses with B-Size Left Hand connections. Made from solid brass, this coupler is built to last, resisting rust and wear even in damp shop environments.

Why Left Hand Threads?
In the welding world, thread direction is a key safety feature. Left Hand (LH) threads are standard for water return lines on many TIG systems (and fuel gases in oxy-fuel setups) to ensure you never accidentally plug a water line into a shielding gas regulator. This coupler features 5/8"-18 LH Female threads on both sides, allowing you to easily splice two male hoses together or adapt a male fitting. It is rated for up to 200 PSI, giving you peace of mind that your coolant or air lines can handle the pressure without bursting or leaking.

Easy Installation
The 3/4" hex design means you can tighten this coupler securely with a standard wrench, ensuring a tight seal that won't vibrate loose during operation. Whether you are extending the reach of your water-cooled torch or configuring a custom air line setup, the AW-431 provides the durability and precise fit you need to keep your equipment running cool and efficient. Don't risk leaks with inferior fittings; trust Western Enterprises for your critical welding connections.