Test Strips 4 Way

4 Way Test Strips. Bottle of 25 Strips. Easy to use, accurate test strips that measure pH, total alkalinity,chlorine free BAQUACIL®, and OXIDIZER. One dip and results for all FOUR factors in just 15 seconds. Use once a week. As a single item purchase this will ship U.S. Mail, other wise goes in box with chemicals. PRODUCT DATE 02/2012.