The manual recharging SPF Spot Filter for marine, home and industrial application is highly effective in preventing hard water damage like corrosion and spots because of the calcium. Now you can prevent it by using Spot Filter, the simplest way to wash your boat, car and big vehicles without water leaking. It consists in a reinforced tank for the media, a container for the salt and a liter-counter. All you have to do is to recharge it up with the salt, depending on the model.
