Protect yourself from germs, parasites, cysts, bacteria, typhoid, dystentery, cholera and giardiasis (know as "traveler's diarrhea").

• Ceradyn elements can last for 13,000 gallons but only filter out solids and bacteria
• Gravidyn elements last for about 6 months, but filter many different things because of the carbon inside of the filter
• Both types are ceramic
• 11-1/4"L x 2"OD
• Switzerland