Bottletop dispenser LABMAX Airless HF, volume range: 2.5 - 25.5 ml, subdivision: 0.50 ml, accuracy: 0.15 ml, deviation: 0.025 ml, thread size: GL45, with automatic air purging - high quality precision instrument, made in Germany - special dispenser, ideal for hydrofluoric acid - highest accuracy and precision, our error ranges are better than the DIN EN ISO 8655 requirements - robust and stable, made of high quality materials e.g. platinum spring, ruby valve balls - 100% drip-free due to our unique anti-drip system - 360 degree rotatable valve block for added safety - one handed operation - flexible by using different bottle adapters - easy to clean, completely autoclavable at 121°C - DE-M marked according to the German calibration law Scope of supply: LABMAX Airless HF, filling and discharge tubes, manual, thread adapters: GL25, GL28, GL45/32, S40, individual certificate