The quality of Purewell backpacking water filter bag meets the National Sanitation Foundation recommendations for water purifiers. Each production stage will be scrutinized to guarantee its quality.
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The quality controls of Purewell gravity filter bag are strictly conducted to be in line with the guidelines approved by the rubber sealing products industry. Adopting imported raw materials, it has no shrinking problems
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Purewell backpacking water filter bag goes through rigorous inspections. These checks include the overall shape and balance check, fabrics used in construction test, and colorfastness check. It requires no water in the mixing process
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Purewell gravity filter bag has been assessed on its workmanship. It has been checked in terms of color shading and colorfastness (rub test), accessories safety. It's non-toxic and 100% safe for installers, people, and pets
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The production process of Purewell backpacking water filter bag consists of 6 critical quality control checkpoints: raw materials, cutting, skiving, upper construction, bottom construction, and assembly. It has a smooth texture and has no noticeable grit
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Due to our strict quality control system, the quality of our products is guaranteed. It's non-toxic and 100% safe for installers, people, and pets