Easy installation & Efficacy: No tools required! It is quick and easy to replace, just taking several seconds. By leaving potentially healthy and beneficial minerals. For optimum performance, it is recommended to replace every 6 month or 300 gallon. Compatible models: Compatible with for EDR2RXD1, W10238154, W10413645A, 46-9082. The listed model numbers are just for reference purpose. High-quality Material: Uses high-grade natural coconut shell activated carbon block as material, which features better adsorptive ability and better performance with microscopic pores. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:White Material:PP+Coconut shell activated carbon stick Package Contents: 3x refrigerator water 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.