What am I

Just felt like postign a brain scratcher

The first person to guess what the contents of this box is will get a virtual pat on the back!
Have fun. If no-one guesses in 15 posts I will include another clue
Clue #1 It is sold at most hardware stores.
**broken link removed**
 
It looks like a quick connector for compressed air.
 
Hydraulic quick connects?

JimB
 
Once again we are trying to get as specific as possible, Size type, color etc. They are Pneumatic Quick connects. Now how detailed can we get?
 
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