Simpure Gravity Water Filter Bag 9in x 4in x 2.36in 3L Blue. 36in. Pore size: 0.1 Microns. Bag capacity: 3 gallons. Filter Longevity: 5000L/1321 gallons. Specifications for Simpure Gravity Water Filter Bag: Manufacturer: Simpure Pore Size: 0.1 microns Color: Blue Capacity: 3 gallons 5000L/1321 gallons Dimensions: 9 x 4 x 2.36 in Package Contents: Simpure Gravity Water Filter Bag Simpure OESF004: Gravity Water Filter Bag 9in x 4in x 2.36in 3L Blue