The Valterra Blue Devil #1 Solution is a 1-ounce reagent refill designed for use with Blue Devil Test Kits to measure free chlorine levels in swimming pools and spas. Regular monitoring of free chlorine is essential for maintaining proper sanitation and ensuring water safety. To use, add the #1 Solution to your water sample as directed by your test kit's instructions, and compare the resulting color to the provided chart to determine the free chlorine concentration. This solution is compatible with existing Blue Devil Test Kits.

• Accurate free chlorine testing Ð Designed for use with Blue Devil Test Kits to ensure precise water analysis.
• Easy-to-use reagent Ð Simply add to your water sample and compare the color to the test chart for quick results.
• Ensures proper sanitation Ð Helps maintain safe and clean water by monitoring free chlorine levels.
• Convenient 1-ounce refill Ð Ideal for regular testing and easy storage.
• Essential for pool and spa care Ð Prevents bacteria and algae growth, ensuring a healthy swimming environment.