Sell [HOT!] 50 pcs Test Strips Swimming Pool SPA Chlorine PH Alkalinity Water Hardness best price

Description: 14 in 1 Test Items: Can test total alkalinity, pH, hardness, lead, copper, iron, mercury, chromium/Cr (VI), bromine, nitrate, nitrite, free chlorine, fluorine, sulfite. The water quality test paper can test various domestic water, such as drinking water, aquariums, swimming pools , spas, industrial water, ponds, hot tubs, etc. Also very suitable for children's Science Fair projects. Easy to use, just Dip the drinking water test paper into the water for 5 seconds, keep it in the air for about 30 seconds, and then adjust the color of the back of the bottle to get the reading. Water quality should be tested every week. A pack of our test strips contains 50PCS drinking water test strips. The sealed package tank plays a role of moisture-proof, with a shelf life of up to 2 years, and it is easy to store and carry. Specification: Name: 14 in 1 Reagent Strips for Water Height: 14cm/5.5inch Package Includes: 50 Pieces Water Test Strips Note: Easy to use: 1. Immerse the test strip in water for 5 seconds. 2. Take out and wait for 30 seconds. 3. Compare the drinking water test strip to the color chart on the bottle.