-5%
PERQUE ph Hydrion Papers
$21.68 $20.60 — or subscribe and save 10%
pH paper directions: tear off 1-2 inches and immerse in 1st morning urine(after 6 hours rest) then compare to specimen color chart(goal 6.5 - 7.5)
Wide Range pH Paper. Hydrion wide range pH papers provide accurate pH measurement at each full (1.00) pH unit
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