I love this bottle! The filter at the bottom keeps the water clean. And it's so easy to pour water in through the top!

Pros: Easy for you to clean

Cons: None

I bought one of these for my rabbit and it worked wonderfully. The flip top makes it easy to fill. Since the top can be completely removed it makes cleaning it easier than the other types. Even though it was different my rabbit figured out how to use it right away. It also snaps in and out of the holder which was another bonus.

Pros: easy maintenace

Cons: top does not seal

My rabbit didn't really like this. I went back to the ball style but she really prefers a bowl. Harder to keep clean but I prefer she drinks.

Pros: Easy to fill

Cons: My rabbit didn't like to use it

Great to fill from the top, but this was still too small for our guinnea pig.

Pros: Easy

Cons: small

The birds always have water - can't spill. Been babysitting my neighbors birds lately - have learned a lot about indoor birds. They drink from this a lot.

Pros: birds really get their water

Cons: no