These pumps dispense a full 1oz when fully discharged. You can cut the tube to fit the length as necessary. Fits standard half gallon and gallon plastic jugs. We are not aware if this fits any glass models as the openings vary on glass much more than plastic in the half gallon and gallon sizes. Made in the USA!
 

This listing is for 1 Pump ONLY. There is no container, jug, or bottle that comes with this pump. You can use this pump for various liquid materials such as shampoo, conditioner, laundry soap, oil, body wash, kitchen liquids, dishsoap, fish oil, etc.