2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
2.5" x 20" GAC/UDF + KDF-55 + KDF-85 +  Cation Resin Filter Cartridge (Chlorine and Iron Reduction)
LiquaGen Water

2.5" x 20" GAC/UDF + KDF-55 + KDF-85 + Cation Resin Filter Cartridge (Chlorine and Iron Reduction)

Regular price $162.00 Sale price $119.99

🌊 Product Overview

The LiquaGen 2.5” x 20” GAC / KDF 55 / KDF 85 / Cation Resin Filter Cartridge (Chlorine & Iron Reduction) is a high-capacity slimline cartridge designed for longer-lasting contaminant protection. Combining Granular Activated Carbon (GAC), KDF 55, KDF 85, and Cation Resin, it provides comprehensive filtration that reduces chlorine, iron, hydrogen sulfide, heavy metals, scale-causing minerals, and unpleasant taste and odor.

With its 20” slimline size, this cartridge offers twice the media volume of a 10” filter, delivering longer service life and fewer replacements. It fits all standard 2.5” x 20” housings and is ideal for under-sink systems, reverse osmosis (RO) add-on stages, or light whole-house filtration setups.


✨ Key Benefits & Features

  • 💧 Chlorine Reduction – GAC removes chlorine, pesticides, VOCs, and organic chemicals for fresher water.

  • 🛡️ Dual KDF Protection – KDF 55 + KDF 85 work together to reduce iron, hydrogen sulfide, and heavy metals like lead, mercury, nickel, cadmium, and aluminum.

  • 🚫 Scale & Hardness Control – Cation resin reduces calcium and magnesium to help prevent scale buildup.

  • 🌱 Bacteria Resistance – KDF media naturally inhibits bacterial growth inside the filter.

  • 🔧 Slimline 20” Fit – Universal compatibility with all standard 2.5” x 20” housings.

  • ⏱️ Extended Lifespan – Larger media capacity means longer intervals between filter changes.


📋 Technical Specifications

Parameter Details
Model LiquaGen 2.5” x 20” GAC / KDF 55 / KDF 85 / Cation Resin Cartridge
Size 2.5” x 20” (Slim Cartridge)
Media Types Coconut Shell GAC + KDF 55 + KDF 85 + Cation Resin
Primary Functions Reduces chlorine, iron, hydrogen sulfide, heavy metals, scale, taste, and odor
Micron Rating 5 nominal
Capacity ~2,500–3,000 gallons (varies by influent water quality)
Recommended Lifespan 6–12 months
Max Pressure 90 PSI (6.2 bar)
Operating Temp. 40–100°F (4.4–37°C)
Housing Compatibility Fits all standard 2.5” x 20” slimline housings

🏠 Applications

  • 🚰 Drinking Water Filtration – Delivers chlorine- and iron-free water for everyday use.

  • 🧊 RO System Add-On – Improves system performance and protects RO membranes.

  • 🏠 Under-Sink Filtration – Provides fresher, safer water for cooking, drinking, and ice.

  • 🧴 Appliance Protection – Helps prevent scaling and staining in kettles, coffee machines, and dishwashers.

  • 🏢 Light Whole-House or Commercial Use – Great for offices, small homes, or shops with moderate water demand.


💙 Why Choose LiquaGen?

The LiquaGen 2.5” x 20” GAC / KDF 55 / KDF 85 / Cation Resin Cartridge provides multi-stage contaminant reduction with extended capacity, combining chlorine and iron removal with heavy metal, scale, and odor protection. Designed for durability and versatility, it ensures cleaner, better-tasting, and safer water for longer periods.