The Katadyn TRK Gravidyn Drip Filter is the easiest way to produce safe drinking and cooking water, indoors or out!. Uses gravity pressure to produce up to 13 gallons of crystal clear water per day (for up to a total of 39,000 gallons depending on water quality).

Water drips from the upper compartment to the lower compartment via THREE 0.2 micron ceramic filters. The Katadyn TRK Gravidyn Drip Filter comes with three ceramic filter elements with inner core of permanently sealed-in activated carbon. The activated carbon reduces chemicals and makes the water taste better.

Katadyn recommends that the GRAVIDYN filter elements be rotated after approximately 6 months if continuously used daily. If used occasionally or for emergency backup or camping, simply air dry elements between uses. No need to change elements until the filters have been used for over 180 days of total filtering. The outer ceramic part of the element though will still filter up to 13,000 gallons.

Purchase here from Nitro-Pak.

"Water is the Most Essential Element of Life..." Approximately 99% of the molecules in the human body by number are water; 65%+90% by weight.  The average person uses about 1 gallon of water per day.

With diminished access to clean drinking water due to fluoridation leading to major health problems (including cancer), having a water purification system may be the single greatest investment in preventive health that you can make.

"Over the past ten years a large body of peer-reviewed science has raised concerns that fluoride may present unreasonable health risks, particularly among children, at levels routinely added to tap water in American cities."


As a result of realizing the health risks caused by fluoride, many people are opting to live healthier by removing this and other harmful contaminants by filtering their drinking water.

This countertop systems installs in seconds and sits on the counter top for water on demand.  Quick and easy  to use, stylish, convenient, and effectively removes  FLUORIDE and hundreds of contaminants from water.