Have Increased Surface Area for Longer Life and Better Performance 5 Micron, 10"x2.5" This cartridge replaces: Aqua-Pure AP110, Whirlpool WHCF-GD05 10"x2.5" 5 Micron Grooved Sediment Melt Blown Filters Cartridges Compatible Replace Aqua-Pure AP110, Whirlpool WHCF-GD05, Watts FPMBG-5-975 Grooved Melt Blown Polypropylene Filter Features and Benefits Gradient Density, Multi-Layered, Melt Blown Sediment Filter Cartridge. Larger particles are trapped in the outer layers, smaller particles penetrate deeper. Greater dirt holding ability and longer life than non-layered cartridges. Thermally bonded polypropylene micro fibers for purity. No surface binders to reduce flow and increase change-out frequency. Available in wide range of lengths and micron ratings. Cartridges are individually shrink wrapped.