Pros

• Make water better. You can even take drinking water from anywhere (river, public faucet, etc.), then purify it with PETIT.
• Healthy. The purified water is water worth drinking, so pets will stay healthy.
• Design fit for animal's mouth, and very easy to clean.
• Leak proof with one button.

Cons

• None.

My Opinion

• This is very useful for dog lovers who often take them for a walk.