The Legacy 3 gallon was designed to be the perfect size for most households. But how many filters do you need?

2 Filter Configuration is ideal for up to 4 people if you fill it once daily (approximately 100 ounces per person). If you refill it multiple times throughout the day, it can serve even more users.

4 Filter Configuration (2x Faster Filtering) is perfect for larger families or up to 8 users, or for those with above-average water use (approximately 100 ounces per person, per day, filled twice daily). This configuration is also ideal if you use filtered water for cooking, watering plants, pets and other household needs.