Insta-Test* hardness Low Range Test Strips, Applications: Drinking Water, Industrial Water Boiling and Cooling, Laundry and Sanitation, Water and Wastewater. 50 strips/vial.
Insta-TEST* pH Wide Range Test Strips, Applications: Drinking Water, Industrial Water Boiling and Cooling, Laundry and Sanitation, Water and Wastewater. 50 strips/vial.
Each Roll Includes 15 Feet Of Paper Spooled On A Tightly Sealed Plastic Dispenser. The Paper Provides Sharp, Clear Color Changes For Easy Comparison To The Included Color Chart.