If you're only going to use the coupler for transfers, and might possibly want to transfer the other way someday (corny/fermenter to sankey), you can remove the check valves inside. That makes it super easy to clean by simply running some hot water through it in the sink.
I'm trying to find some porn filmed by a dog wearing a GoPro. - SharonaZamboni
Hunter, when you get bored, will you put a taco in my elephant's hands for me? - Hat