Harder and Steenbeck Quick diconnect coupling 104403

Works great. Does what it is intended to do.

This works great with  Plug in nipple for Harder Steenbeck and Iwata airbrushes (104063) by SprayGunner  (and the 104064 chrome version). No air leaks, easy to use, an elegant and compact solution to quick disconnecting the airbrush. Highly recommended!

Perfect accessory. Connects easily with no leaks. Great product.

Forget about the cheap Chinese counterparts. It's german-made, perfectly fit, no leaking. It worth its price.

very useful for my H&S airbrush ... but also very expensive ...