Gram Stain Kit Advanced, with Stabilized Iodine, Produces Brighter Colors for Both Gram Positives and Negatives, 4x8 Ounce, by Hardy Diagnostics: Amazon.com: Industrial & Scientific
GRAM'S STAIN KIT (Ready to Use)
BD Kit per colorazione di Gram BBL™ With stabilized iodine BD Kit per colorazione di Gram BBL™ | Fisher Scientific