Hanna Instruments Marine Water Testing Checker Colorimeter Kit – 5 Units

Take your reef tank maintenance to the next level with this full set of Hanna Instruments Handheld Colorimeters, perfect for serious marine hobbyists and professionals. All items are in excellent condition, clean, and come complete with accessories and reagents (some new, some partially used). Included Units: 1. HI774 Marine Phosphate ULR (Green) 2. HI758 Marine Calcium (Red) 3. HI772 Seawater Alkalinity (Blue) 4. HI713 Marine Magnesium (Gray) 5. HI782 Marine Nitrate HR (purple) What You Get: • All original hard cases • Colorimeters in working condition • Testing vials • Reagents and refills • Syringes, pipettes, cuvettes, spoons • Instruction booklets Retail Value: Over $300+ ✅ Great bundle for reef tanks ✅ Trusted brand in marine water chemistry ✅ Easy-to-read digital results Asking: $125 for the complete set or $35 ea Prefer to sell as a full bundle, but willing to separate.