Vertex Optional Phosphate Filter

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Phosphate Pre-Filter Protects Your Bottleless Water Cooler If you're concerned about sediment, scale, rust or lime in your water supply, you may want to protect your cooler and add a phosphate pre-filter. The optional phosphate filter can be used on any Vertex PureWaterCooler and reduces scale that could potentially damage the cold or hot tanks. Filter measures 2" x 10" - NSF listed. **Replace every 6 months. Show more