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 33665-1L F33665 Buffer pH 4,00 red 1,00LPE Price on request MA9011 Refillable electrolyte solution 3.5m KCl (230mL) Price on request 33648-10L-VP F33648 Buffer sol pH 9,00 (20C) 10,0LK Price on request