NUVO H2O Evaporative Cooler Scale Preventer Puck

Evaporative Cooler Scale Preventer Puck: Protects evaporative coolers from damaging scale, Longevity: Lasts for up to 3 months with regular use, Design: Features citrus boost to help remove existing limescale, Material: Made with polyphosphate slow-release pearls for long-lasting protection, Manufacturing: Proudly made in the USA, Item Type: Suitable for residential use, Warranty: No warranty provided, Additional Feature: Wall mountable for easy installation