120PCS 1/4 inch Compression Fittings Assortment kit -（1/4") 50 Brass Compression Sleeve Ferrule, 50 Insert & 20 nuts - used to connect lines for air,water,fuel,oil and inert gases

When you consider what the Big Box stores want to charge you for brass nuts, ferrules, and inserts. If you ever need to use 2 sets, this kit will pay for itself and you get 50 ferrules, 50 inserts for plastic tubing, and 20 nuts (which are the only reusable part). Perfect for all of your 1/4" plastic and copper tubing needs!

these things are really handy when your 3d printing, i used to never use them know i use them all the time...

Even though the sizes are printed as SAE, I'm guessing they really are metric - tried a 5/16" nut on the threads of a connector that should take a 5/16" nut but it was way too loose... I'm sure I will find a use for them on metric sized piping; too much of a hassle to return them...

Excelente

Exactly what I needed

As listed and quick shipping.

I used this for my 60 year old gas boiler 1/4" supply to the thermocouple. Saved hundreds (maybe thousands of dollars) Plenty of couplers left for any type of 1/4" supply lines.

Excellent Price for all the pieces you need in one place. Would purchase again.