Example - SK Series Capsule, Luer Lock V/D, 2.5" Internal filter, 0.2 micron PolyPro Membrane Capsule, Standard Grade, with 1.5" Tri-Clamp fittings would be SKLM020STCTC Quick Couplings are molded, Female Quick Coupling with Plastic latch will be threaded on, compatible with CPC (Colder), LinkTech and others.