The product is a lot of 24 Nu-Calgon Pan Pads Condensate Pan Treatment in solid blue color. These pads are designed to treat condensate pans and are compatible with the Nu-Calgon B15-340 model. Perfect for home improvement projects related to heating, cooling, and air systems, these pan pads provide a convenient and effective solution for maintaining optimal performance in HVAC systems. Made by the trusted brand Nu-Calgon, these solid blue pan pads offer reliable protection and treatment for condensate pans in various heating and cooling systems.