For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

SAFE, PRECISE, ACCURATE – Our bottle top dispensers can be used to dispense precise amounts of chemicals, reagents, organic and inorganic solvents, oils and more from bottles or other containers. Bottletop dispensers allow you to safely dispense a fixed amount of liquid directly from a bottle to a receiving container. Bottle top dispensers help reduce the loss of reagents, save time, and reduce risk.

JAM FREE TECHNOLOGY – The ETP O-Ring ensures proper lubrication for the PTFE piston against the glass barrel to ensure a smooth and jam-free dispensing experience.

USE WITH CONFIDENCE – United Scientific bottletop dispensers are ISO 9001, ISO 13485, ISO 17025, and CE certified. Outperforms ISO 8655 standards (0.5% accuracy) in practical lab environments. A calibration certificate guaranteeing ISO level accuracy and precision is provided and is valid for one year. Our dispensers are fully autoclavable at 121° C and 15 PSI for 10-15 mins.

CHEMICAL COMPATIBILITY – United Scientific dispensers utilize SpringlessValve technology and a PTFE piston. The absence of spring in the valve and the use of inert materials ensures high chemical compatibility with a wide range of acids, bases, solvents, organics, and inorganics (complete compatibility chart provided).

Five adapters are included with each unit for use with a wide range of bottle sizes. Adapters included are as follows 28mm, 32mm, 38mm, 40mm and 45mm.

Fully Autoclavable at 121°C, 15psi. for 10 - 15 minutes.