IPW Industries Inc. Compatible PC1000-P Bulk Water Filter Catalytic Carbon Charcoal Replacement Media and Pre-Filter 5 Micron Sediment Replacement Filter w/O-Rings and FunnelComplete Replacement Kit IPW Industries Inc. Compatible PC1000 P Bulk Water Filter Replacement Kit High grade catalytic carbon media with sediment pre filter, O rings, and funnel. Everything you need for a complete PC1000 P filter rebuild. 12x40 Mesh Catalytic Carbon 5 Micron Sediment Filter 10" x 4. 5" Dimensions WHY IT WORKS Catalytic carbon handles what standard carbon cannot Catalytic Carbon Media More porous structure than standard activated