Swimline Hydrotools Replacement OTO and Phenol Red Water Test Drops

Swimline Hydrotools Replacement OTO and Phenol Red Water Test Drops

Swimline

$4.99 
SKU: 8450

Replace your tester drops once a season with Swimline Hydrotools Replacement OTO and Phenol Red Water Test Drops! This Kit has refills for the OTO and Phenol Red which tests for Chlorine and Ph.

Pack includes-

  • 1/2 oz. Phenol Red Drops
  • 1/2 oz. OTO Drops