The Zomboss Healing Station, also called the Heal Station, or just simply Heal, is a variant of the Zombie Heal Station that can only be dropped by Dr. Zomboss' blimp in Boss Mode. It costs 100 brains to deploy. It will self-destruct 30 seconds after being deployed. It heals zombies like the Zombie Heal Station but heals twice as fast, has twice the range and lasts longer. Its plant counterpart is the Twin Heal Flower. It takes 40 seconds to recharge.
This new and improved healing station can heal Zombies more efficiently than the crummy ones Dr. Zomboss gave the Scientist Zombie.
Plants vs. Zombies Wiki has a gallery for Zomboss Healing Station.
This is the only Boss Mode ability that has the same icon in the Stickerbook and Boss Mode.