Adopted from , these drinking water test strips are durable and practical for use. 16-in-1 extensive testing, these test strips could meet your different needs. Simple and easy to use, bringing you a healthy drinking water environment for your home. Features -Color:Assorted Color -Material:Paper, plastic -Size:12.00X0.50X0.50cm/4.72X0.20X0.20in -Size:10.50X1.00X1.00cm/4.13X0.39X0.39in -Test items: PH, total alkalinity, free , total , nitrate, nitrite, , lead, iron, copper, fluoride, , chromium/ , hardness, carbonate root, cyanuric acid - This item is drinking water test strip, simple and easy to use, convenient for you. - Suitable for various water quality testing of drinking water, , running water. - The drinking water test strip is useful and excellent, keep your drinking water very and clean. - Water quality test strips are easy to store and simple to carry, portable and lightweight, practical and reliable. - The test strips are useful and , simple to test water quality, you can use it with peace of mind. Package list: drinking water test strips 1 tube 1 x dropper