Yes, there are several water filters, including some from Brita and other brands, that can filter a gallon of water quickly. Here are a few options that are known for their speed and efficiency:

1. Brita Ultra Max Filtering Dispenser

• Capacity: 18 cups (about 1.13 gallons).
• Filter Speed: Can filter water quickly, often filling a glass within minutes.
• Features: Has a large capacity and a filter indicator that reminds you when to replace the filter.

2. ZeroWater 10-Cup Pitcher

• Capacity: 10 cups (about 0.625 gallons).
• Filter Speed: Not as fast as some options, but effective in removing total dissolved solids (TDS).
• Unique Selling Point: Comes with a water quality TDS meter to check filtration effectiveness.

3. Aquagear Water Filter Pitcher

• Capacity: 8 cups (about 0.5 gallons).
• Filter Speed: Generally comparable to Brita, suitable for quick filtering.
• Features: Removes chlorine, lead, and other contaminants; filters up to 150 gallons of water.

4. Brita Personal Water Filter Bottle

• Capacity: Around 20 ounces (0.16 gallons).
• Filter Speed: Ideal for on-the-go filtering; filters water as you drink.
• Advantages: Compact and portable, great for travel or outdoor activities.

5. Berkey Water Filter System

• Capacity: Varies depending on the model (some can hold up to 2.25 gallons).
• Filter Speed: Filters water relatively quickly, allowing about 2.75 gallons per hour for some models.
• Suitability: Excellent for home and emergency situations; also removes a wide range of contaminants.

Alternative High-Volume Filtration Options:

• Reverse Osmosis Systems: Can filter water quickly in larger quantities, typically under the sink setups that filter several gallons per hour.
• Whole House Filtration Systems: For homeowners looking to filter all water entering the house, these systems can provide filtered water on demand.

Summary

If you’re looking for a water filter that can handle a gallon of water relatively quickly, the Brita Ultra Max Dispenser or systems designed for larger outputs like the Berkey may be your best options. For faster portable solutions, a Brita personal filter bottle also works well.