HardyDisks* AST Doxycycline D-30 5 x 50 disks^ HardyDisks* AST, Doxycycline, D-30, impregnated paper disks used for Antimicrobial Susceptibility Testing (AST), also known as Kirby-Bauer testing, fully compatible with the BBL single or multiple disk dispensers, Size: 5 x 50 disks
