Cat Litter Supplies: First Alert Urinary Tract Infection Detector Cat Litter 

First Alert Urinary Tract Infection Detector Cat Litter

A yellow-green ring appears around litter that has been used by a cat with a healthy urinary tract. A green-blue ring appears around litter that has been used by a cat with a possible urinary tract infection. A distinct blue ring appears around litter that has been used by a cat with a high pH level, consistent with FUS/FLUTD. Consult your veterinarian.
 

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