RV Airflow Systems - Air Conditioner Air Flow Systems with Two Duct InsertsAir Conditioner Flow System w Two Duct Inserts Only works with GE model ACs Improve the performance of your RV air conditioner! The RV Airflow is a patent pending module that installs into the plenum, the space between the bottom of your air conditioning, that captures 100 Percent of the air and directs it in an optimized way into your RV's existing duct work. The module is a non electrical, non mechanical device that removes air friction and