It is not that difficult. You are expected to follow the instruction. Then perfect installation and good operation can be achieved. We have realized the easy installation of water filter straw with years of efforts. Each step has been tested, so as to make sure that the operation is normal. You may send an email or call us when faced with any problems. If it is hard to describe, a video is acceptable. Then engineers will offer a solution after analysis.

Fully engaged in the R&D, design, and manufacturing of survival water filter, Yongkang Kapu Houseware Co., Ltd is renowned as a significant market player. Purewell's soft flask series include multiple types. The product can be connected to the Mac or Windows PC with USB or built-in Bluetooth, which is easy to use and is ultra-responsive for users to create work directly. It allows users to drink from rain, river, stream, puddle, etc. Purewell has perfect quality insurance system, powerful research & develop ability for Gravity Water Filtration System. It takes up a small space in the backpack.

Purewell unswervingly adheres to satisfying the needs of customers Gravity Water Filtration System. Check now!