Ion Director Multi-Reference Highly precise and stabilized reference solution for ION Director calibration and cross-checking. Max. tol. +/ - 1% Ca: 420 mg/l Mg: 1300 mg/l K: 390 mg/l Na: 10700 mg/l NO3 11 mg/l

Ion Director reference B 500ml

Ion Director reference B 1000ml

Ion Director reference A 1000ml

Ion Director reference A 500ml

Test Phosphate - 100 tests

Test Magnésium - 75 tests

Buffer solution pH 4

MultiTest Kit Trace Colors Pro (I2,K,Fe) Tests developed for the precise measurement of Iodine, Potassium and Iron. Recommended for highly oligotrophic systems. Economic format The Red Sea Coral Colors Pro Test Kit contains high-end tests for high precision measurement of iodine, potassium and iron. All these elements are associated with many biological...

Multi Referenz 100ml Sample of seawater with known concentration of different elements (Ca, Mg, Potassium, Salinity, KH, Sr, Nitrates, Nitrites). Use it to check the accuracy of your colorimetric tests! [...]

KH Reference 1000 ml

Calcium marine test kit - 75 tests User-friendly titration test provides a quick and reliable measurement of calcium in your aquarium, with accuracy of either 15ppm or 30ppm, according to your needs Red Sea’s user-friendly Calcium Marine Test Kit provides a quick and reliable measurement of calcium in your aquarium to an accuracy of either 15ppm...