The cost depends on the size and number of coolers/freezers you have. Our customers’ monthly costs are typically between $60-$200 per month depending on the factors previously mentioned. When one of our representative’s comes to your facility to install the filters on a FREE 2-week trial basis, he/she will discuss pricing with you. Please note that if you are not 100% satisfied with the results after the 2-week trial, we will remove the filters with no further obligation to you. Furthermore, we do not require our customers to sign a contract. Rather, we work on a month-to-month basis. This has proven to be successful for our 300+ active monthly customers.