🌊 Product Overview
The LiquaGen 4.5” x 20” Cation Resin Filter Cartridge is the ultimate whole-house water softening solution for homes with high water demand. Packed with premium 10% cross-link strong acid cation exchange resin, this refillable cartridge effectively reduces calcium and magnesium—the primary culprits behind scale buildup.
As the largest size in the LiquaGen cation resin cartridge line, it delivers the highest grain capacity and longest operating life, protecting your plumbing, appliances, and fixtures from hard water damage while reducing maintenance costs. Designed to fit all standard 20” Big Blue housings, it’s the ideal choice for families or light commercial setups that need reliable, large-capacity water softening.
✨ Key Benefits & Features
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💧 Maximum Hardness Reduction – Removes calcium and magnesium ions to stop scale in pipes, heaters, and fixtures.
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⚡ Extended Grain Capacity – Handles up to 4,500+ grains of hardness, providing longer service life before regeneration or replacement.
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🔄 Refillable & Reusable – Eco-friendly cartridge design allows easy resin replacement and reuse.
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🏠 Whole-House Protection – Designed for 20” Big Blue housings, delivering high-capacity coverage.
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🚿 Appliance Longevity – Protects dishwashers, washing machines, coffee makers, and water heaters from scale damage.
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💪 Heavy-Duty Build – Constructed with high-impact end caps, a durable polystyrene body, and Buna-N gasket for leak-free performance.
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🌡️ Reliable Operation – Consistent softening at up to 1.5–2.0 GPM, with temperature tolerance up to 100°F.
📋 Technical Specifications
| Parameter | Details |
|---|---|
| Model | LiquaGen 4.5” x 20” Cation Resin Filter |
| Size | 4.5” x 20” (Big Blue Cartridge) |
| Media Type | 10% Cross-Link Strong Acid Cation Resin |
| Grain Capacity | ~4,500 grains (depending on water hardness) |
| Flow Rate | 1.5–2.0 GPM (optimal for softening) |
| Cartridge Type | Refillable / Reusable |
| Operating Temperature | 40°F – 100°F |
| Max Pressure | 125 PSI (8.6 bar) |
| End Caps | High-impact construction |
| Body | Polystyrene |
| Gasket | Buna-N |
| Housing Compatibility | Fits all standard 4.5" x 20” Big Blue housings |
🏠 Applications
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🚿 Whole-House Softening – Provides scale-free water across every faucet and fixture.
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🛁 Bathrooms – Prevents soap scum, stains, and buildup on glass and tile.
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🍳 Kitchens – Keeps sinks, faucets, and dishwashers free from mineral scaling.
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🔥 Water Heaters & Boilers – Protects heating elements from mineral deposits for efficiency and longevity.
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🧺 Laundry Machines – Delivers softer wash water to protect fabrics and extend appliance life.
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✔️ Light Commercial Use – Suitable for cafés, restaurants, and labs with higher water demands.
💙 Why Choose LiquaGen?
The LiquaGen 4.5” x 20” Cation Resin Filter Cartridge offers the highest capacity softening performance in our cartridge range, making it the go-to solution for households and businesses dealing with tough hard water problems. With its refillable design, durable construction, and compatibility with standard Big Blue housings, it provides a long-lasting, cost-effective way to protect your plumbing, fixtures, and appliances.