This pressure pump is used to pump water from distilled, spring and reverse osmosis water bottles. It is made to fit various sizes of water bottles. It is very convenient, labour saving, with a high water flow. It is suitable for many uses, whether for the family, cottage, office, school or camp. Product Description Manual Water Pump Description: 1. Material: PP, without smell or toxic material to ensure water quality. 2. Can be used with 3, 4, 5 gallon water bottle, Neck Dia of the bottle: 56mm(standard), 58mm 3. Uses heavy-duty vacuum action and works like a pressure pot. Simply push down on the top of the pump. Manual WaterPump? 1. No batteries required. 2. No drips or leakage. 3. Great for the shed, cabin, camping, etc. 4. Dust-proof outlet. 5. Suction tube with adjustable length to suit different vessel. 6. Spare brush for easy cleaning. 7. Backup extension suction tube. 2.The second thing about the relevent fee of the product: Because of the packaging, we never manufacture the product except the sample which sent to David. If we manufacture the product without the packaging first, it will be dirty. Maybe it will be damaged. So we never manufacture the product any more before the final confirmation about the packaging. In the other hand, we have not confirm the packaging and the relevent fee between us. I know that you have change the design and different from before and you change the requirement about the packaging. I think we need negotiate with each other. Or you have a good idea now. 8. Stable liquid flow.