pH Meter Buffer Calibration Solution, YOU CHOOSE 4, 7 OR 10pH, 1-Gal Bottle vee gee scientific Item Description: NI Supply GR-100

Item Description: NI Supply GR-100 Portable 0-100% v/v Glycerin Refractometer with (10) 3ml Pipettes measuring ºF

Maintenance: Always clean and dry the prism after each use to maintain accuracy and keep the unit from discoloration

LIGHTED DAYLIGHT PLATE

The RGM-700 Portable Gemological Refractometer in a Black Vinyl Zipper Case in a sturdy hard case

pH Meter Buffer Calibration Solution, YOU CHOOSE 4, 7 OR 10pH, 1-Gal Bottle vee gee scientific Item Description: NI Supply GR-100Item Description: Polarchem pH Meter Buffer Solution 4. 00, 7. 00 OR 10. 00pH 4 Liter Jug (4 Liter roughly 1 Gallon) Product Specs: * 4 Liter Jugs (roughly 1 Gallon) * Temperature Charts are included on each bottle of solution * Expiration dates on every bottle, usually between 18 24 months before expiration * pH 7. 00 is the most commonly used Buffer Solution Use this product to keep your pH Meters running at optimum levels! You choose which Buffer