• 50 pool and spa test strips
• protect your equipment from corrosion and your guests from bacteria by testing your hot tub water twice per week
• easy color-coded results in seconds permit you to make quick and clear adjustments to your spa chemistry
• works with both chlorine hot tubs and bromine hot tubs
• tests for free chlorine, bromine, total chlorine, alkalinity, and pH
• Made in USA

Note: These test strips are fully compatible with chlorine and with bromine sanitizers. However, they do not work at all with biguanide (BaquaSpa) sanitizers. If you use the FROG @Ease System or the FROG @Ease System for Bullfrog spas, these test strips will (incorrectly) report that your chlorine level is too low.