For those RVers who are very short of space or who like to take short trips, this model is ideal for you. It is only a tenth of a cubic foot in volume and has a small (3,200 grains) of water softening capacity. Nevertheless, it is highly efficient at removing calcium, magnesium and many other heavy metals.
You don’t need electricity to regenerate this water softener system and it is exceptionally easy to use. The overall tank is only six inches in diameter by 15 and 5/8 inches high and made from reinforced plastic which can withstand 150 psig of pressure. The inlet and outlet are simple garden hose connections made from nylon materials listed as NSF 61 compliant. The male hose connections are capped for mobility.