Emergency Survival Water Distiller and Gravity Filter Combination GRAVI-STIL(tm) Auto Fill Feature Non-Electric Water Distiller/Desalinator Producing 8-10+ Cups per Hour Gravity Water Filter Producing upto 5 Gallon per Hour Converts from Distiller to High Speed Gravity Water Filter Made In USA - Makes All Water Drinkable and Sterile Removes Bacteria, Viruses, Protozoa, Heavy Metals, Salt