Where can you buy a Holmes humidifier tank cap?

Caps for the water tank on a Holmes humidifier are available for customers to buy from Appliance Factory Parts and Jarden Store, as of 2015. Both retailers offer a list of compatible models to help customers find the right match for their Holmes humidifiers.

Appliance Factory Parts offers flat-rate shipping on orders delivered within the continental United States, and the company's website also lists other names for specific tank caps to further ensure the correct fit. Jarden Store also lists models of humidifiers from manufacturers other than Holmes that may have caps that fit, and the online retailer provides special offers and tips for email subscribers.