4.5" x 10" GAC/UDF + Phosphate Crystals (Scale Reduction) UPGRADE KITS 5” x 20” GAC/UDF +

5” x 20” GAC/UDF + Phosphate Filter Size 2

🛡️ Heavy Metal Filtration – KDF 55 targets dissolved metals like lead

🏠 Light Whole-House Use – Provides entry-level whole-house protection in slimline housings

Parameter Details Model LiquaGen Cation Resin Filter Cartridge Size 2

Designed for well water applications

4.5" x 10" GAC/UDF + Phosphate Crystals (Scale Reduction) UPGRADE KITS 5” x 20” GAC/UDF +Product Overview The LiquaGen 4. 5 x 10 GAC UDF + Phosphate Crystals Filter Cartridge is a dual stage Big Blue cartridge that combines Granular Activated Carbon (GAC UDF) with phosphate crystals for superior water treatment. The GAC UDF layer removes chlorine, taste, odor, and organic impurities, while the phosphate media prevents scale buildup and protects plumbing systems from corrosion. Designed for Big Blue 4. 5" x 10 housings, this cartridge