Hanna HI780-25 Marine pH Reagents | 100 Tests | Reef Aquarium pH Checker HI3815-100 Small parts can go missing

Small parts can go missing during transport or degrade over time — especially in rough terrain or tough weather

✅ Automatic Temperature Compensation (ATC) — real-time correction via dedicated stainless steel temp probe

Santevia Mineral Stones replicate this process in your Gravity Water System’s lower reservoir: filtered water sits in contact with maifan stones and bio-ceramic balls

The selectable auto-off feature prolongs battery life for peace-of-mind and energy savings if the meter is accidentally left on

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Hanna HI780-25 Marine pH Reagents | 100 Tests | Reef Aquarium pH Checker HI3815-100 Small parts can go missingHanna HI780 25 Marine pH Checker Reagents 100 Tests Keep your reef tank thriving with precision pH data. The Hanna HI780 25 replacement reagents are engineered specifically for the HI780 Marine pH Checker HC, delivering fast, accurate pH readings in saltwater and reef aquarium environments every single time. Why Choose HI780 25 Reagents? Pre measured for accuracy no guesswork, no dilution errors Phenol Red colorimetric method color shifts from yellow