pHion Balance, Diagnostic pH Test Strips, 90 Strips -
The length of time for the expiration date or 'best used before' date depends on the type of product, as well as the brand. ... Over 10 Million Medical pH Test Strips Sold... 90 Wide Range 4.5 - 9.0 pH Test Strips; ... Dip pHion pH Test Strip into saliva or urine, match test results to the pHion pH Color Chart above after waiting 15 seconds ...
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