Product Description
Overview
This 5 lb Refill Media Kit is designed for Big Blue 4.5" x 20" refillable cartridges, allowing you to refill your filter instead of replacing it. The premium blend of KDF 85, Birm®, and Catalytic Carbon delivers powerful reduction of iron, sulfur, manganese, chlorine, heavy metals, and unpleasant odors. An economical and eco-friendly solution for well water and municipal water treatment.
Filtration Media Breakdown
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KDF 85 Process Media
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Reduces iron and hydrogen sulfide (“rotten egg” odor)
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Controls bacteria, algae, fungi, and scale buildup
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Removes up to 99% of water-soluble lead, mercury, nickel, chromium, and dissolved metals
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Birm® Media
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Efficiently reduces dissolved iron and manganese
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Long life, high durability, and low attrition loss
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Requires no chemicals for regeneration — only simple backwashing
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Acts as a catalyst to enhance oxidation and filtration of iron and manganese compounds
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Catalytic Coconut Shell Carbon (CAC)
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Steam-activated, high-activity carbon with superior catalytic properties
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Removes chloramines, hydrogen sulfide, VOCs, pesticides, trihalomethanes (THMs), and organic contaminants
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Improves taste, clarity, and odor without adding chemicals
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Exceptional hardness and clean finish for maximum performance
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Key Benefits
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✅ Refill Instead of Replace – Economical & eco-friendly solution for 4.5" x 20" Big Blue housings
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✅ Multi-Stage Contaminant Reduction – Iron, sulfur, manganese, chlorine, heavy metals, and odors
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✅ Safe & Chemical-Free – No regeneration chemicals needed; backwash maintenance only
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✅ Long-Lasting Media – Durable, reliable performance under proper water conditions
Technical Specifications
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Weight: 5 lbs (fills one 20" Big Blue cartridge)
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Bulk Density (Birm): 40–45 lbs/ft³
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Mesh Size: 10 × 40
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pH Range: 6.8–9.0 (iron removal) / 8.0–9.0 (manganese removal)
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Max Water Temp: 100°F (38°C)
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Service Flow Rate: 3.5–5 gpm/ft²
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Backwash Rate: 10–12 gpm/ft²
⚠️ Shipping Restriction: This item cannot be shipped to California.