USPS or UPS will be used to ship the items to you!!! This listing is for 8 pieces of the filter. 20" x 2 1/2" 50 Micron Gradient Density Melt Blown Sediment Cartridges  Model # LF-PP-050-508  Part # LF-PP-050-508Industry Standard Size 20" × 2.5" Sediment CartridgeIndustry Standard Size 20" × 2.5" Sediment Cartridge  This cartridge replaces:Clack Corporation 31052000Flow-Pro FPMB5-20GE Hytrex GX05-20GE Osmonics MB-05-20 (Part# 1013240)GE Purtrex PX05-20Features and BenefitsGradient 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 and chemical compatibilityContains no binders, agents, solvents, antistatic materials or wetting agentsMeets FDA requirements for food and beverage contactNo leachables or extractables to contaminateNo surface binders to reduce flow and increase change-out frequencyCartridges are individually shrink wrappedMicron rating is molded into cartridgeAvailable in wide range of lengths and micron ratings ApplicationsWhole House Sediment FiltrationReverse Osmosis PrefiltrationFood and beveragesOil and gasFine chemicalsElectronicsMetal finishingPulp and paper   25 Micron Sediment Filter