(8)Tube fitting unions are straight thread fittings that have two tube fitting end connections to connect two pieces of tubing in a straight run. /Asset/D-U_solidworks.jpg
(7)Tube stub adapters are used to connect tubing to tube fitting ends. They are especially useful in adapting fittings and valve end connections from one size fitting to another, close coupling fittings, and to position instruments and fittings in the proper position./Asset/D-R_SOLIDWORKS.jpg
(3)Duolok bulkhead unions are straight tube fittings designed to pass through a bulkhead or cabinet wall. They have two equal size tube fitting end connections and an extended threaded body designed to be secured the fitting to a bulkhead or cabinet wall with a bulkhead nut./Asset/D-BU_solidworks.jpg
