I like the stainless casting
"I like the stainless casting of this fitting and the machined surfaces are of a very high quality. I found the female half of this coupling quite difficult to engage the two lobes of the cams. I soaked the fitting in boiling water for a while to soften the plastic seal and applied some food grade lubricant to the two cams. This helped and after a few more soakings in boiling water with the male and female halves coupled together the fittings work easily."