IPW Industries Compatible Pelican PC600-R Bulk Refill Coconut Shell Activated Carbon for Whole House Water Filter, with Funnel and Tank O-RingPremium Refill Media IPW Industries Compatible Pelican PC600 R Bulk Refill Coconut Shell Activated Carbon 15 pounds of high grade coconut shell GAC media for PC600 whole house filtration systems, with funnel and tank O ring included Coconut Shell Carbon 15 lb Bulk Media Includes Funnel & O Ring WHY IT WORKS Coconut Shell Activated Carbon Performance Coconut Shell Source Higher micropore density than coal based carbon gives superior adsorption capacity