I’m interested in donating my used Crew water bottles used on a couple of treks. There are 7 – 2 liter bottles and 14 – 1.5 liter bottles. So this would work for a Crew of seven. Our Crew’s carried one personal 1 liter bottle such as a Vapur bottle then used these as Crew water – each carried a 2L and 2 – 1.5L for a total of 6L if needed. You can determine how much to carry each day. PM me if interested. To my knowledge none leak. Three water tanks included. You cover shipping.