Sport Berkey® Filter-Ref SPTREP it requires no batteries and

it requires no batteries and guarantees reliable filtration for up to 5

while essential minerals are retained

It quickly attaches to the outlet of the Royal Berkey and ensures reliable operation

durable filter system that operates entirely on gravity—no electricity or water pressure required

A reliable and high-quality water purification system

Sport Berkey® Filter-Ref SPTREP it requires no batteries andThe replacement filter element for the Sport Berkey water bottle The Sport Berkey Filter Element is designed to significantly eliminate or reduce toxic chemicals, heavy metals, volatile organic compounds, trihalomethanes, detergents, pesticides, herbicides, chlorine compounds, pharmaceuticals and petroleum products, unpleasant odors, sludge, sediment, and chlorine. Directions for use: To drink, suck firmly through the straw while squeezing the bottle