SÜA Welding TIG/MIG Hose Coupler Review
By Garage Welding Editorial Team
Last Updated: June 1, 2026
The SÜA Welding TIG/MIG Hose Coupler is a small brass fitting made to connect two TIG or MIG shielding gas hoses. It uses a 5/8”-18RH female x 5/8”-18RH female design, so it is mainly for right-threaded Argon, CO2, and mixed shielding gas hoses with matching male fittings.
This is not a universal hose adapter. It is also not made for left-threaded TIG water hoses. If your hose uses a different thread, this coupler will not be the right fit.
Quick Verdict
The SÜA 11N17 hose coupler is a good choice if you need a simple brass connector for two compatible TIG or MIG shielding gas hoses. It is best for welders who already know they need a 5/8”-18RH female-to-female fitting.
Skip it if you need a left-threaded TIG water hose coupler, a quick-connect fitting, or a fitting for a different gas system.
Key Specs
| Specification | Detail |
|---|---|
| Brand | SÜA |
| Model / Size | 11N17 |
| Part Number | SWT-11N17 |
| ASIN | B0BL8HFW5H |
| Fitting Size | 5/8”-18RH Female x 5/8”-18RH Female |
| Material | Brass |
| Compatible Hose Type | TIG/MIG Argon, CO2, and mixture gas hoses with 5/8”-18RH male fittings |
| Not For | Left-threaded TIG water hoses |
| Item Weight | 1.76 ounces |
| Product Dimensions | 9 x 7 x 1 inches |
What Is This Product?
The SÜA Welding TIG/MIG Hose Coupler is a brass gas hose connector. It is used to attach two TIG or MIG gas hoses together when both hoses use compatible 5/8”-18RH male fittings.
It can also help connect TIG Dinse plug connectors with a gas line to a flowmeter hose, as long as the thread and gas-hose setup match the coupler.
The key point is fit. This coupler is right-threaded. It is made for shielding gas hoses, not left-threaded TIG water hoses.
Who It Is For
- Welders who need to join two compatible TIG or MIG shielding gas hoses.
- Users working with Argon, CO2, or mixed shielding gas hose setups.
- People who need a 5/8”-18RH female-to-female brass fitting.
- DIY welders and shop users who want a simple fixed coupler instead of a quick-connect fitting.
Who Should Skip It
- Skip it if your hose has left-hand threads.
- Skip it if you need a TIG water hose coupler.
- Skip it if your setup uses a different thread size.
- Skip it if you need a quick-disconnect fitting.
- Skip it if you need a fitting for fuel gas, oxygen, or another gas system not listed for this coupler.
Key Features
5/8”-18RH Female-to-Female Design
The coupler has a 5/8”-18RH female x 5/8”-18RH female layout. This lets it connect two matching right-threaded male fittings.
This size is common on many American TIG and MIG shielding gas hose setups. Still, you should check your hose end before buying.
Made for TIG and MIG Shielding Gas Hoses
The listing says this coupler fits most American MIG and TIG Argon, CO2, and mixture gas hoses with 5/8”-18RH male fittings.
That makes it useful when you need to extend or connect a shielding gas line in a welding setup.
Brass Construction
The verified material is brass. Brass is often used for gas fittings because it is durable and resists corrosion better than many low-cost metals.
The listing also says the threads are carefully machined for a leak-free connection. You should still check for leaks after installation, especially when working with shielding gas.
Clear Left-Thread Warning
This coupler is right-threaded. It will not fit left-threaded TIG water hoses.
This warning matters because forcing the wrong thread can damage the fitting, damage the hose, or create a leak.
Real-World Use
In real use, this type of coupler is mainly about fit and seal quality. If both hose ends match the 5/8”-18RH male thread, installation should be simple.
Before you tighten the fitting, inspect both hose ends. Make sure the threads are clean, straight, and not damaged. Cross-threading can ruin the fitting and may cause leaks.
After installation, check the gas connection before welding. A small leak can waste shielding gas and may affect weld quality.
What Buyers Are Saying
Based on Amazon customer reviews visible at review time:
- Praise: Several reviewers say the fitting works as intended for basic hose connection jobs.
- Praise: Buyers mention good quality, a nice finish, and use with purge lines or flowmeter hose connections.
- Watch-out: No repeated complaint theme was visible in the review text available to view, so the main caution is to confirm the correct right-hand thread before buying.
Pros and Cons
Pros
- Brass construction
- Fits 5/8”-18RH male TIG/MIG shielding gas hose fittings
- Works with Argon, CO2, and mixed shielding gas hose setups when the fittings match
- Can help connect TIG Dinse plug gas-line setups to a flowmeter hose
- Small and simple part with no batteries or moving parts
Cons
- Will not fit left-threaded TIG water hoses
- Only useful if your hose ends match the 5/8”-18RH thread
- Not a quick-connect fitting
- No pressure rating was clearly shown in the verified listing details
- Warranty terms were not clearly shown in the product details
Is It Worth the Price?
The SÜA hose coupler is worth considering if you need this exact fitting size and thread type. It is a small part, but the right coupler can save time when you need a secure gas hose connection.
The value depends on your setup. If you already know your hoses use 5/8”-18RH male fittings, this coupler is a practical buy. If you are not sure about your hose thread, check your hose, regulator, flowmeter, or manual first.
Alternatives to Consider
Here are a few alternatives to compare before buying:
- SÜA 11N17 Pack of 2: Good if you need more than one matching coupler.
- RASETSU QDB33 Argon Quick Connect Fittings Set: Better if you want a quick-connect style setup instead of a fixed coupler.
- Generic 5/8”-18RH Brass Argon Hose Coupler: May work if it clearly matches the same thread and gas-hose use case.
Do not choose an alternative by appearance only. Match the thread, gas type, hose use, and connection style first.
Frequently Asked Questions
Can This Coupler Be Used With Left-Threaded Hoses?
No. This coupler is right-threaded. The listing states that it will not fit left-threaded TIG water hoses.
What Material Is the Coupler Made From?
The verified material is brass. The listing describes it as a brass TIG/MIG gas hose coupler.
What Size Is This Hose Coupler?
It is a 5/8”-18RH female x 5/8”-18RH female coupler. It is designed to connect matching 5/8”-18RH male fittings.
What Gas Hoses Does It Fit?
The listing says it fits most American TIG and MIG Argon, CO2, and mixture gas hoses with 5/8”-18RH male fittings.
Can It Connect a TIG Dinse Plug Gas Line to a Flowmeter Hose?
Yes, the listing says it can be used to connect TIG Dinse plug connectors with a gas line to the flowmeter hose, as long as the fittings match.
Is This Good for High-Pressure Use?
The verified listing details did not show a clear pressure rating. Do not use it for any high-pressure or non-listed gas system unless the manufacturer confirms it is safe for that use.
Does It Come With Hoses?
No hose was listed as included in the verified product details. This listing is for the coupler.
What Should I Check Before Buying?
Check your hose thread size, thread direction, gas type, and connection style. You need a 5/8”-18RH male fitting on both sides for this coupler to make sense.
Final Verdict
The SÜA Welding TIG/MIG Hose Coupler is a simple brass fitting for a specific job. It connects two compatible TIG or MIG shielding gas hoses with 5/8”-18RH male fittings.
Its biggest strengths are the brass build, clear size, and simple female-to-female design. Its biggest limitation is fit. It will not work with left-threaded TIG water hoses or different thread sizes.
If your setup matches the verified specs, this coupler is a useful small part for your welding gas line. If your setup does not match, choose a different fitting.
