Contact: Phone: 18135789881 QQ: 488014003 Guoxing Feng (busy failed to respond promptly, please understand, in a hurry to call) E-mail: 488014003@qq.com Company Address: Shangqiu City, Yucheng County, Henan Province integrity Avenue in the middle Product Specifications : Length: 71mmⅩ diameter 41mm PP cotton Diameter: 38mm caliber 3cm for a variety of ordinary tap for 1.5CM-2.5CM taps. Product Features: 1, the test status quo dirty water: If the water quality of the demo filter for some time, its white filter becomes yellow, indicating that the water has been contaminated. 2, the test water purifier filter effects: Water demonstrator with tap water and purified water purifier filter respectively, can be found through the water filter cartridge Water demonstrator in yellow, and water quality through water filtration Demonstrator cartridge no longer color change, you can test out the water purification effect is excellent. 3, testing water quality, set in the ordinary faucet, can be used as a simple filter. 4, connected to the faucet, if the water is not clean, then a few days later, PP core becomes dirty, so customers know their water filter needs to improve its water quality. 5. Reduce the pressure of the water to prevent splashing. The new food-grade PVC plastic cotton material, so rest assured that the water you peace of mind. Instructions for use: 1. Keep the product set in the faucet; 2, after a period of time with water, PP cotton swab darken, indicating high water turbidity, the darker, indicating that the more dirt; 3, the product can not be filter out bacteria, viruses, can not use as a water purification device; 4, the detection process does not affect the normal access to tap water, testing has been completed please remove the product; 5, the product is only applicable water quality conditions in the demo, if you want drinking safe, healthy and hygienic water, please use our shop professional household water purification equipment.