Salifter Refracto Check on testiliuos , jonka tiheys on 35 ppm refraktometrien kalibrointiin . Sisältö riittää jopa 100 testiin.
- tony m. wrote about Salifert Refracto Check in 2018:
This is a very good product ,far better than calibration with distilled water and very accurate, after a couple of water changes my corals look better .I would recommend that anyone who owns a refractometer should have this.
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