... made flushing easillyThe cleaning media in the cartridge, prevent calcium, magnesium, reduce water hardness, avoid and remove scale in the water ... Applies all kinds of small single water treatment as front pretreated equipment. Such ... water heater, gas water heater, washing machine, dishwasher and ect. Meanwhile, it applys to country groundwater. 1" Water pre-filter (Germany technology , Made in China ...