Hanna Instruments Nitrite Low Range Checker Reagents (25 Tests) - HI707-25 citrus detergent booster then open dust cap to

then open dust cap to expose bite valve

Do Mineral Stones filter contaminants

Provides easy-to-follow instructions

ensuring perfect match to your display tank

Temperature Compensation:  Automatic from -5 to 60°C

Hanna Instruments Nitrite Low Range Checker Reagents (25 Tests) - HI707-25 citrus detergent booster then open dust cap toThe HI707 25 are the replacement reagents for the HI707 Nitrite Low Range Checker HC. These high quality reagents are manufactured in our state of the art facility and are clearly marked with the lot number and expiration date on each bottle for traceability. Pre made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability The HI707 25 are high quality reagents that are pre measured,