50Pcs Water Test Strips Kit Drinking Water Aquarium Tap Water Quality Test Other Swimming Single Sheet Size(LxW): Approx

Single Sheet Size(LxW): Approx

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Material:Plastic Color:As the picture shows Size:4

and you can be aware that letters will stay for ever

50Pcs Water Test Strips Kit Drinking Water Aquarium Tap Water Quality Test Other Swimming Single Sheet Size(LxW): ApproxITEM NAME: 50Pcs Water Test Strips Kit Drinking Water Aquarium Tap Water Quality Test img *{margin: 0; padding: 0;. Water quality should be tested every week. 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.