Cleaning old parts

[TJ-Bill]

I just bought a bunch of kegging equpiment. I have 6 Couplers and several fitting that could use a real good cleaning. Whats the best way to get them clean? I was thinking that they need to be soaked in something but I'm not sure what.?

Thanks

 

[Dpostman]

Scent Free Oxyclean

 

[IrregularPulse]

aka Oxi-Clean Free
aka, I'm a post whore