Laboratory grade plastic pH strips in durable and easy to open flip-top vials

• Easy-to-use — simply dip strip in solution to be tested and match to color chart immediately
• Single color match with full 0.5 in. (1.27cm) matching area for quick and accurate matches
• Flip-top vial stays closed when dropped, but is easy to open with one-hand
• Sturdy vial keeps strips safe from the elements
• Full pH range (0.0-14.0) is available in a universal pH strip and finer measurements across the pH range
• 100 strips per vial; pack of 6 vials