4.5" x 20" BIRM / KDF 85 Filter Cartridge (Iron, Manganese, Sulfur & Rotten Egg Smell Reduction) marine depot 🛁 Bathrooms – Prevents stains

🛁 Bathrooms – Prevents stains and buildup on shower glass

and residential well water treatment where low to moderate iron and sulfur levels (<5 ppm) are present

5" x 10” format

It’s the perfect choice for households seeking reliable whole-house protection and better water quality

5" x 10” Big Blue housings

4.5" x 20" BIRM / KDF 85 Filter Cartridge (Iron, Manganese, Sulfur & Rotten Egg Smell Reduction) marine depot 🛁 Bathrooms – Prevents stainsProduct Overview The LiquaGen 4. 5 x 20 Birm KDF85 Filter Cartridge is a high capacity Big Blue cartridge designed for whole house water treatment. Using a proven blend of Birm media and KDF85 granules, it effectively reduces iron, manganese, and hydrogen sulfide (rotten egg smell)three of the most common well water problems. With its large 4. 5 diameter and 20 length, this refillable cartridge offers extended capacity, higher flow rates, and longer