About the product
A systemic gram negative ring device carrying 8 antibiotic impregnated tips; (Ampicillin 10µg, Cephalothin 5µg, Colistin Sulphate 25µg, Gentamicin 10µg, Streptomycin 10µg, Sulphatriad 200µg, Tetracycline 25µg, Cotrimoxazole 25µg) allowing the simultaneous application of the equivalent individual antimicrobial susceptibility test discs.