Chemsolute techn. buffer pH 4.01, red, twin neck bottle, 250ml Back Catalog number: 1165-250ML Availability: In the manufacturer's stock Price on request - + Recommended 33593-1L Buffer solution pH 4.008 (25oC) with fungicide, ac Price on request 33649-500ML Buffer solution pH 10.0 (20oC) borax / sodium hydr Price on request 33646-500ML Buffer solution pH 7.0 (20oC) potassium dihydrogen Price on request