Sawyer Bucket Filter | Україна Індивідуальне навчання

बोतल फ़िल्टर असेंबली और उपयोग

How to Assemble and Use a Sawyer Bottle Filter Kit

Mèsi de Sawyer

A few highlights of some recent and on-going international water projects

ការជួបប្រជុំនិងការប្រើប្រាស់តម្រងដប

How to Assemble and Use a Sawyer Bottle Filter Kit