Listing is for 7 filters.5 Micron Polypropylene String Wound Sediment Filter - 2.5 x 20Polypropylene string-wound sediment filter provides optimum particulate, sediment and solids filtering capacity. Low-Cost Alternative to name brand filters. Fits any standard 2.5 x 20 filter housing, including Big Blue housings. Large void volume design for low-cost, reliable filtration performance with high contaminant holding capacity.Specifications:Polypropylene media for chemical resistanceFood grade ingredients for potable waterNo leachables to contaminate downstreamMicron Rating: 5mFlow Rate: 5 Gallon per minute R1R2S1