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Home > Photography > Black-and-White Photo Chemicals > UltraFine B & W Photo Chemicals Liquid and Liquid Concentrates > Ultrafine Hypo Check 1 oz.
Hypo Check is used to test whether your fixer solution has been exhausted or not. Use one drop in your fixer; if the solution is filled with residual silver, the drop will turn milky white."
Ultrafine Hypo Check 1 oz.
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