Practical pump dispenser ideal for easy and precise dosing of liquid supplements. Each pump stroke provides a dose of approximately 20-30 ml. It is compatible for bottles and containers that have a cap size with a circumference of 28 mm. To fit different bottle sizes, the tube that enters the liquid can be cut to the desired length. This makes the dosing pump adaptable for a variety of bottle heights and volumes. Fits 2.5 L and 5 L canisters from Eclipse Biofarmab.