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🔧 Connect with Confidence — The Last Fitting You'll Ever Need!
The Horiznext Stainless Steel 304 Compression Fitting is a heavy-duty coupler designed to connect 1/4 inch outer diameter tubing to 1/4 NPT male threaded pipes. Built from corrosion-resistant 304 stainless steel, it supports high pressures up to 600 PSI and operates across an extreme temperature range from -100°F to 660°F. Perfect for professional-grade plumbing and industrial applications, it ensures a secure, leak-proof connection compatible with brass, copper, and stainless steel tubing.

















| ASIN | B08YNNWKM4 |
| Best Sellers Rank | #42,320 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #144 in Compression Fittings |
| Brand Name | Horiznext |
| Color | Silver |
| Connector Type | Coupling |
| Customer Reviews | 4.5 4.5 out of 5 stars (192) |
| Exterior Finish | Alloy Steel, Stainless Steel |
| Item Weight | 0.01 Ounces |
| Manufacturer | Horiznext |
| Material Type | Stainless Steel |
| Model Number | 3215489 |
| Number of Pieces | 1 |
| Size | NPT 1/4-1/4" O.D. 1 pc |
| Thread Size | 1/4 inch |
| Thread Type | NPT |
| Unit Count | 1.0 Count |
S**P
Great item
Used to replace the brass fitting that kept breaking
E**.
Worked on 1/2" copper tubing
I had a dishwasher connection that used 1/2" copper tubing with flare fitting attaching to valve. Replace the valve with 1/2" compression and needed this fitting to cut off flare and use this fitting to make transition to use stainless steel braided hose. The 1/2" NPT threads on the fitting seemed a little tight in connecting the stainless steel braided hose. I added some food grade anti-seize thread compound to make disassembly easy later.
D**D
Hex coupling
Looks to work
F**0
Good quality
Good quality
R**B
Good price
I use these fittings to connect tubing to pumps in a commercial application. Most of my pumps require 316 stainless to handle the chemicals they’re pumping but a few of them are fine with 304 as they’re neither highly acidic nor caustic. These have worked great for those pumps and they’re a fraction of the cost of 316 fittings. They have a nice finish on them that you’d expect, without any burrs or anything like that. Good quality and value for sure.
D**H
Very high quality thank you
Very high quality much appreciated
C**E
Works fine
I had to get a brass sleeve in place of the SS ones provided as they didn't fit the 1/2" size stainless pipe.
B**C
Installation straight forward.
Used 2 of these right off the batt on 1/2" stainless coil that I used for a shadetree pool water heater. I used these connectors to adapted each end of a 50' 1/2" stainless coil to fit standard 3/4" water hose connector. I then put the coil inside a propane convection heater. With the current pump I am getting a 45 deg water temp rise going through the heater on about 2/3 heat setting. These fittings are fairly simple to install and the two that I have used is working great. Can probably extend our pool season another month. I may make a 2nd heater before next spring. That way can open the pool much earlier.
M**E
Works well with no issues.
O**G
Works as expected with no issues.
R**Y
This Horiznext 304 stainless steel compression fitting is for connecting 1/2 inch OD tubing to 1/2 NPT male threaded pipe. It’s made entirely of type 304 stainless steel, heavy-duty and corrosion-resistant. The machining is perfect. The split ferrule compression design grips the tube tightly, preventing leaks in any demanding setup. This connection can be done up, undone, and reconnected many, many times if you don't abuse it. Rated for 600 psi and temperatures from -100 to 660°F, this fitting is at home in industrial or lab environments, as well as DIY. This fitting is a quality, reliable choice for connecting stainless steel tubing to threaded pipes.
M**C
Made very well with some weight to the items. However these do not fit a basic residential application. I did not understand that they do not fit over 1/2 inch basic copper tubing used in home plumping.
J**S
This is an excellent pack of compression fittings. They are very well made, works great.
Trustpilot
1 month ago
3 days ago