CEJN Quick Connect Coupling Specialist You can find CEJN in every corner of the world and we proudly carry the reputation as the leading global quick connect coupling specialist. Born and developed through Swedish ingenuity gives us a heritage to be proud of. “Made in Sweden” is for us, a seal of high industrial quality. Add “by CEJN” and you get quick connect couplings with the assurance of quality and superior performance to guarantee professional use and customer benefit.