Strong Base Anion Exchange Resin – 5 lb Bulk | Food Grade, High Capacity
Premium Anion Resin for Nitrate & Tannin Removal
This high-capacity, food-grade strong base anion exchange resin is engineered for superior removal of nitrates, nitrites, and tannins from potable water. Ideal for residential, commercial, laboratory, and industrial water treatment applications.
Product Highlights
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Food-grade resin for drinking water systems
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Excellent nitrate & nitrite selectivity
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Highly effective for tannin & organic color removal
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Long service life & high regeneration efficiency
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Sold in bulk 5 lb bag for convenient cartridge refilling
5 lb of resin fills:• Approximately 10× 2"×10" inline refillable cartridges• Approximately 7× 2.5"×10" standard refillable cartridges
Tannin Removal Made Simple
Tannins cause yellow-to-tea-colored water, unpleasant taste, and odor — especially common in well water.
They originate from decaying organic matter, humic & fulvic acids, and are difficult to remove using standard sediment or iron filters.
This resin captures tannins effectively via anion exchange & adsorption, especially when water pH is above 6.
Below pH 5, tannins are better treated using activated carbon.
Nitrate Protection for Health & Safety
Nitrates are commonly introduced into groundwater by agricultural fertilizers, runoff, and mineral deposits.
Long-term exposure is linked to kidney damage and certain cancers, while infants face the risk of methemoglobinemia (blue baby syndrome).
This resin is specifically formulated to remove nitrate and nitrite from drinking water to safe levels.
Resin Technology
Resin Type: Macroporous Type-I Strong Base Anion
Matrix: Polystyrene cross-linked with DVB
Functional Group: Quaternary Amine (Triethylamine)
Ionic Form: Chloride (Cl?)
Appearance: White to pale yellow spherical beads
Suggested Operating Conditions
| Parameter | Specification |
|---|---|
| Max Temperature | 60°C (140°F) |
| Operating pH | 3–9 |
| Service Flow Rate | 5–15 BV/hr |
| Regeneration | 8–10% NaCl brine |
Physical & Chemical Properties
| Property | Value |
|---|---|
| Total Exchange Capacity | = 0.8 eq/L |
| Moisture Retention | 50–60% |
| Particle Size | 0.315–1.25 mm (95%) |
| Whole Beads | = 96% |
| Bulk Density | 0.65–0.75 g/mL |
| Specific Gravity | 1.05–1.10 |
| Effective Size | 0.4–0.6 mm |
| Uniformity Coefficient | < 1.7 |
| Free Moisture | < 2% |
Primary Applications
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Drinking water purification
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Well water tannin & nitrate treatment
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Deionization systems
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Wastewater treatment
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Pharmaceutical & biochemical processing
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Hydrometallurgy (tungsten, molybdenum extraction)
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Ultra-pure water production
Service & Regeneration Notes
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Regenerate every 2–3 days for best tannin performance
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Recommended brine dosage: 10 lb NaCl per ft³ of resin
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Frequent regeneration prevents organic fouling
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Pre-softening recommended if hardness >10 gpg
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Remove chlorine/chloramine before resin to extend life
Cleaning & Maintenance
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Citric or phosphoric acid removes calcium carbonate fouling
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Soda ash cleaning improves tannin elution
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Chlorine treatment only as last resort
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Replace resin if oxidation damage occurs
Why This Resin Outperforms Others
Traditional styrene-based resins often fail against regional tannin variations.
Modern macroporous and high-water-retention resins like this formulation offer:
- Higher organic capacity
- Improved regeneration
- Longer service life
- Greater tolerance to fouling
If you'd like, I can also:
- Create a shorter Amazon-optimized description
- Write installation instructions
- Generate a technical data sheet PDF
- Provide sizing calculations for whole-house systems
Filter Replacement Options and Alternatives for Item Number:104133-5
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