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.
The costs of some whole house water systems sold by in-home presentations can be a financial shock. It is not unusual to find the costs of a modest water softener/conditioner and inexpensive reverse osmosis system ranging from $2500 to $7000, usually whatever the traffic can bear.