Time-release sulfa block helps to control a variety of disease-causing organisms, including salmonella, for the safety of pets and owners. Each turtle-shaped block treats up to 20 gallons. Available as a single pack or 3-pack.
![Tetra ReptoGuard Water Conditioner 1 pack Tetra ReptoGuard Water Conditioner 1 pack](https://cdn11.bigcommerce.com/s-ldfio/images/stencil/500x659/products/1181/179561/original__40124.1720542084.jpg?c=2)
Time-release sulfa block helps to control a variety of disease-causing organisms, including salmonella, for the safety of pets and owners. Each turtle-shaped block treats up to 20 gallons. Available as a single pack or 3-pack.