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🌊 Product Overview
The LiquaGen 4.5” x 20” GAC/UDF + KDF 55 + KDF 85 Filter Cartridge is a high-capacity Big Blue whole-house filter designed to protect your family, plumbing, and appliances from chlorine, heavy metals, iron, hydrogen sulfide (rotten egg odor), and unpleasant taste or smell.
With its oversized 4.5” x 20” design, it provides maximum media volume, higher flow rates, and extended service life—ideal for large households and high water demand. Built with GAC/UDF for taste and odor control plus KDF 55 and KDF 85 media for metal, iron, and sulfur reduction, this cartridge delivers the strongest contaminant removal in the LiquaGen cartridge series.
✨ Key Benefits & Features
💧 Whole-House Chlorine Reduction – GAC/UDF removes chlorine, chloramines, VOCs, and organics.
🛡️ Heavy Metal Filtration – KDF 55 reduces lead, mercury, cadmium, and nickel.
🔩 Iron & Sulfur Control – KDF 85 reduces iron and hydrogen sulfide for fresher water.
🌱 Bacteriostatic Media – Naturally inhibits bacterial growth inside the cartridge.
🔧 Big Blue 20” Fit – Works with all 4.5” x 20” housings.
⏱️ Maximum Service Life – Largest media capacity means fewer replacements.
📋 Technical Specifications
Model: LiquaGen 4.5” x 20” GAC/UDF + KDF 55 + KDF 85 Cartridge
Size: 4.5” x 20” (Big Blue Cartridge)
Media Types: GAC/UDF + KDF 55 + KDF 85
Micron Rating: 5 nominal
Capacity: ~7,500–10,000 gallons (varies by water quality)
Lifespan: 9–12 months
Max Pressure: 90 PSI (6.2 bar)
Operating Temp.: 40–100°F (4.4–37°C)
Housing Compatibility: Fits all 4.5” x 20” Big Blue housings
🏠 Applications
🚰 Whole-House Filtration – Provides cleaner, safer water across every faucet.
🚿 Bathrooms – Eliminates chlorine and sulfur odors for better showers.
🧺 Laundry – Prevents staining and chlorine damage to clothing.
🍳 Kitchen & Cooking – Improves taste for drinking water, coffee, tea, and meals.
🏠 Appliance Protection – Extends the life of heaters, dishwashers, and washing machines.
💙 Why Choose LiquaGen?
The LiquaGen 4.5” x 20” GAC/UDF + KDF 55 + KDF 85 Cartridge is the largest and most durable option in the lineup. With its Big Blue format and multi-stage filtration, it ensures maximum chlorine, heavy metal, iron, and sulfur reduction for homes with high water demand.
