Our Mixing Bottles make diluting and mixing pet shampoos or solutions fast and easy. Each bottle is imprinted with graduated fill lines marked with common dilution rates from 1:1 to 20:1. ¥ Fill with warm water to the appropriate dilution rate line and add concentrate to the fill line ¥ Shake or tip the bottle to mix and youÕre ready to go! ¥ Bottles come with either a pop top or a flip top, depending on available selection Plastic bottle capacity is 32 oz.