Supermax (short for: super-maximum security) is the name used to describe control-unit prisons, or units within prisons, which represent the most secure levels of custody in the prison systems of certain countries.
Consumer Complaints and Reviews. Outrageously expensive for services not provided: $690 - the cost to purchase your own, high-quality softener and RO filtration plus 1 year of filters and salt. $5,770 - the cost of a 3-year contract with Culligan to rent their basic softener and RO filtration with service.
You can rent a unit for a month or years because long contracts typically donât exist. Finances are the biggest reason to rent a water softener. If you donât have the upfront capital (a few 100 dollars to thousands of dollars), renting may be an option. You can also rent to test the waters to see what your water is like with a system in place. Itâs important to know that when you rent a unit, you may also face other fees: