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Pentair Pentek GAC-20BB Big Blue Carbon Water Filter, 20-Inch, Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 20" x 4.5", Pack of 4

DealMapped found a used-like-new / resale deal on Pentair Pentek GAC-20BB Big Blue Carbon Water Filter, 20-Inch, Heavy Duty Granular Activated Carbon (GAC) Replacement Cartridge, 20" x 4.5", Pack of 4. The current observed price is $175.06, compared with a reference price of $269.11, for an estimated savings of $94.05 or 39% off.

• Condition: Used Like New
• Seller: Marketplace resale offer
• Current observed price: $175.06
• Reference price: $269.11
• Discount percentage: 39% off
• Category: Clothing, Shoes & Jewelry
• Last seen: June 25, 2026