【68】When it comes to ultrafiltration water filter/purifier, what exactly are the differences between external pressure membranes and internal pressure membranes, which ordinary consumers often refer to?

【65】For Turbid Well Water, Choose ChengrongEra ultrafiltration Whole House Water Filtration System, 5-year Filter Element Warranty, Quality More Trustworthy Than Insurance.

【60】Internal Pressure Membrane Cannot Be Hand-Washed, but Its Backwash and Blowdown Performance Is Excellent, It Means that It Is More Convenient in Terms of Maintenance

【67】If You Want Value for Money, Not Just Low Price – Choose ChengrongEra Ultrafiltration Water Purifier, No Pitfalls for Either Whole-House Water Filtration or Kitchen Drinking Water