No batteries or chemicals are needed for operation.
Sawyer Mini Water Filtration System Outdoor Camping Trekking
Sawyer Mini Water Filtration System Filters Up to 100,000 Gallons
Sawyer Mini - Water Filtration System - Blue - BNIB - Camping - Hiking.
Sawyer Mini Water Filtration System Filter SP128 Survival Travel Emergency
Sawyer Mini Water Filtration System Filter SP128 Survival Travel Emergency Blue
Sawyer Mini Water Filtration System New
