Fountain capacity: how much water is enough
4 min read · Sippy Paws

Fountain pages list capacity in litres, quarts or both. The numbers can be confusing.
Here is what they mean, and how to think about them for your home.
Litres and quarts
A litre is a little more than a quart. Our 4 L fountain holds about 4.2 qt. Our 2.2 L fountain holds about 2.3 qt.
Capacity is listed as about, because the exact value depends on the fill line.
What it means for you
A bigger bowl holds more water, so you may fill it less often. A smaller bowl takes less space and is easier to carry to the sink.
We do not set a rule for how much water your pet needs. If you have a question about that, ask your vet.
Which one to pick
The Sippy Cordless Fountain, 4 L suits homes with one or two pets, or a medium sized dog. The 2.2 L suits smaller spaces and a cat.
Check the width as well, and measure your spot before you order.
Space and weight
Water has weight, so a bigger fountain is heavier when full. Think about whether you will lift it to the sink. The Sippy Cordless Fountain, 4 L gives you more room for water, while the 2.2 L is lighter to carry.
Shop the products in this guide
Questions and answers
Is 4 L enough?
It depends on your home and your pets. Check the water level each day and top up when needed.
Can I fill it past the line?
Follow the fill line on the fountain.
More fountain guides

Fountains for multi-pet homes
Bigger bowls for more sippers.
Read the guide →
How to choose a pet water fountain
Size, power and parts, explained in plain words.
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Small kitchens: where a fountain fits
Space-friendly ideas for tight corners.
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