As an Amazon Associate I earn from qualifying purchases.Updated: March 27, 2026
The Brita Longlast Pitcher Filter is essential for removing impurities and improving the taste of your drinking water. Over time, the filter's ability to remove contaminants decreases. Replacing it regularly ensures you continue enjoying clean, great-tasting water. Delaying replacement can lead to reduced filtration effectiveness and potentially harmful contaminants passing through.
Function: Reduces chlorine taste & odor, sediment, and certain impurities for cleaner, better-tasting drinking water.
Signs it needs replacing: Reduced water flow rate or noticeably altered taste/odor of filtered water.
OEM vs aftermarket: Brita (OEM) filters guarantee compatibility but are generally more expensive. Third-party options are often cheaper but carefully research reviews to ensure fit and quality.
Installation: Typically involves simply twisting the old filter out and inserting the new one, following the pitcher's instructions.
Replacement schedule: every 6 months
Compatibility warning: always verify part number OBL21 matches your exact Brita Longlast Pitcher model before ordering
Pros & Cons
Pros
✓ Restores device to original performance without buying a new unit
✓ Significantly cheaper than a full device replacement
✓ Multiple options available from OEM and aftermarket sellers
Cons
✗ OEM parts cost more than third-party alternatives
✗ Wrong part number will not fit — model verification is essential
Common Use Cases
Scheduled maintenance on the every 6 months replacement cycle
Performance restoration after noticing reduced output or efficiency
Preventive replacement before a worn part causes secondary damage
Who Should Buy This
This replacement Filter OBL21 is for owners of a Brita Longlast Pitcher whose filtered water output has decreased or tastes noticeably different. It's an ideal solution to extend the life of your pitcher.
Not ideal for: If your Brita Longlast Pitcher is significantly damaged or outdated, replacing the whole unit might be more cost-effective in the long run.
Good to Know Before Buying
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Always confirm your exact model number () before ordering. Part numbers vary between model variants and production years. Check the label on your device or original documentation to be sure.
Frequently Asked Questions
What is the part number for the Brita Longlast Pitcher Filter?
The part number is OBL21. Always verify this matches your exact model () before ordering, as similar models may use different parts.
How often should I replace the Filter on my Brita Longlast Pitcher?
every 6 months
Will aftermarket Filter replacements work in my Brita Longlast Pitcher?
Third-party parts are widely available and often cheaper than OEM. Look for listings that specifically mention compatibility with model and check buyer reviews for fit confirmation before purchasing.
Prices change frequently. See the latest deal on Amazon.