They can often be reused if you carefully cut the hardened rubber away from the coupling. If you prefer new here you go. Three are included here and that is the total used on your V6 or V8 engine up through 2006.
These are hard plastic, and they connect your breather hoses together. Most often they can be reused.
M112 V6 M113 V8 Breather Hose Plastic Couplings x 3