[NSF 42 CERTIFIED]Tested and certified by NSF,WQA and IAPMO against NSF/ANSI 42.Tested at a flow rate of 0.5 gpm to a capacity of 300 gallons for the reduction of Chlorine, and Odor. Significantly the drinking water .[NSF 372 CERTIFIED]Tested and certified by NSF,WQA and IAPMO against NSF/ANSI 372.Product also evaluated and determined to possess weighted average lead content of less than 0.25%.No any harmful substances contains in this filter. Safely and healthily enjoy your drinking water.[8 WEEKS LIFETIME]Enjoy better water by replacing your water filter 2 months.[Environmental protection]No consuming water of ABS bottles.Reduce white pollution. recyclable. Inside is a high quality natural activated carbon that can the plant after recycling, such as flowersMaterial:ABScolour:WhitePackage Contents:6 * filter Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.