Sell water purifier Home Water Detector Water Quality Demonstrator PP Cotton Filter Water Impurities F best price

Home Water Detector Water Quality Demonstrator PP Cotton Filter Water Impurities Filters Detected Filter 1. If the water quality demonstrator is filtered for a period of time, the white filter will become yellow, indicating that the tap water has been contaminated. Water quality inspection Wells of water purifier filter effect demonstrator water purification of tap water and water purifier filter respectively, can be found that after water filtration of water quality in the demonstrator filter become yellow, and the water quality in water filtration demonstrator filter for a long time, no change color, can test the purification effect of water purifier is admirable. 2 role 1. Demonstrate the fact that tap water is dirty; 2. The effect of purifying water purifier; 3 illustrates This product is easy to operate and can be used to see the water quality.