Can I buy a replacement plug for the water tank of my Mini Dehumidifier? Jessica November 09, 2021 12:27 Updated I'm afraid we currently don't sell the small black plug for the water tank separately. Related articles How can I clean my Mini Dehumidifier? How can I test the humidity in my room? What dehumidifier shall I get for a small space? Where should my air purifier be installed in my home?