Fritz 35 ppt is a pre-measured refractometer calibration solution takes the guesswork out of properly calibrating your instrument – with no need for expensive or unreliable measuring equipment. A refractometer is essential to the saltwater hobbyist for success. Maintain its accuracy by recalibrating regularly.
Pre-measured refractometer calibration solution
- Use as a reference for any density measurement instruments
- Simple 2 or 3 drop application
- Quickly calibrate to 35 ppt or 1.026 sg