United brand bottle top dispensers offer high accuracy at economical prices. Each dispenser is individually calibrated and certified in an ISO 17025 accredited laboratory in accordance with ISO 8655 standards. Five adapters are included with each unit for use with a wide range of bottle sizes. All…

These research grade bottle top dispensers feature a 30mm tread and come complete with five additional adapters (28, 32, 36, 40, and 45mm) allowing laboratories to use them right out of the box. Fully autoclavable and highly accurate.