The Watts MAXVOC 1 MicronVOC Carbon BlockFilter isin the Watts WP-4V and WP4v-50 Reverse Osmosis System.

These filtersreduceharmfulVolatile Organic Chemicals (VOC)like MTBEs, Atrazine, Benzene, 2,4-D, Lindane and others from your drinking water.

This filter is only for use as a VOC Post-Filter

• Certified toNSF/ANSI 58 Certified Reverse Osmosis Units
• NSF Certified for the reduction of VOCs
• Filters down to 1 micron
• Filter rating: 600 gallons (1 year)