[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, Taste and Odor. Significantly improve the drinking water taste. [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 ]Enjoy better water by replacing your water filter every 2 months. [Environmental protection]No longer consuming water of ABS bottles.Reduce white pollution. recyclable. Inside is a high quality natural activated carbon that can nourish the plant after recycling, such as flowers Material:ABS colour:White Package Contents: 6 * filter elements 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.