The quantum tunnel was a device created by Dr. Hank Pym to safely enter the Quantum Realm.[1]
History
While searching for a way to save Janet Van Dyne from the Quantum Realm, Dr. Hank Pym spent years creating the quantum tunnel. However, as Pym was nearly able to activate, Dr. Bill Foster and Ghost tried to steal his technology. Pym was able to successfully rescue Janet. Later, Pym and Janet created a smaller version of the quantum tunnel they installed in the X-Con Security van. However, during a test run, Hank, Janet, and Hope were dusted leaving Ant-Man trapped in the Quantum Realm.[1]
The van and quantum tunnel were eventually placed into storage until a rat accidentally triggered the quantum tunnel freeing Ant-Man. After learning about the last five years, Scott drove the van from California to the New Avengers Facility. The van and quantum tunnel were finally destroyed during the final battle between the Avengers united forces and Thanos' army.[2]