Profile: Kent Systems, LLC designs, manufactures and distributes quick couplings, tube fittings & media bags. Our collection 1 is a classic design quick coupling. It offers a large variety of quick disconnect configurations. The triggering open-flow female coupling is one of the simplest collection 1 couplings. Our collection 4 has a more ergonomic design that is ideal for numerous applications. It includes double O-ring, compact design and hard stop. The female cap and male plug stop the flow from collection 4 components. The cap and plug are used in the same method as any other coupling in collection 4, and used in conjunction with female & male shut-off couplings. We also offer various types of tees, elbows and tube unions.