Ph Test Paper Ph 6.0-8.0 Rl Ref, Case Of 50

Details:

Hydrion ph 6.0-8.0 Paper refills^ 5rolls/pk. Short range ph (6.0-8.0) Paper showing a sharp color change for each half ph unit. 15 Foot rolls of ph paper with 2 color charts. For standard single and double roll dispensers. Packed in heat sealed aluminum foil and tightly secured in a plastic case.