Qjaiune 10Pcs Male Straight Push to Connect Fittings 8mm Tube OD x 1/4 inch NPT Thread, Air Push Connect Tool Pneumatic Hose Fittings

Seem high quality. No leaks.

Fit perfectly and perform as expected on our 300 PSI air line hose! Much better value than the name brand and the quality is just the same if not better! Do not leak and seem durable and solid.

These were useful for me when I purchased an inexpensive air hosereel with asian spec air couplers installed on it. They wouldn't work with anything I had as they were Unxcell type and are rare at best in the U.S. I snipped off the existing connectors (shown) and slid these on. They even have a little coating of teflon embedded in the threads, but I added some teflon tape to be sure. Now I can use the hosereel with all my tools!

Not enough tape threads are small but adding more tape fixed them.

These fittings lock in with no fuss and provide a solid seal. Great build quality for the price. I used them in a DIY compressor setup and had zero air leaks.

Works great

Good for argon line gas welder

Used these to get rid of rubber hose and hose clamps from my catchcan.

These fittings have British parallel threads, not NPT. The thread pitch is different. A crude and unreliable joint can be made but it is ... crude and unreliable! The fitting may actually be OK, but when something is not as described I will give it no more than one star.