Denker's Culligan of Ionia has been providing reliable and trustworthy water treatment products and services locally for over 50 years. Owned and operated by the Denker Family since 1961, we are committed to solving our customers' water treatment problems. We provide state of the art water softener sales and rentals, salt and delivery, fresh bottled water and delivery, water cooler sales and rentals, reverse osmosis water purification systems, and more!