Bottle attachment dispenser for hydrofluoric acid and other particularly aggressive media, with variable volume configuration in appropriate steps, certified conformity, with reagent recirculation system, piston, cylinder, valve seats and ball made of high-purity ceramic (Al2O3), valve springs made of platinum/iridium, suitable for steam sterilisation up to 121°C, A 45 screw thread.
Delivery complete with 3 threaded adapters (A 32, S 40, A 38), 1 suction hose with union nut, 1 ejection unit and 1 fitting wrench, with individual serial number and calibration certificate.