Model number WD-FSBUL Replacement model number WD-FSBU, WD-GWB, WD-SWB Size Filterstraw: Φ1.38 inches*7.09 inchesCollapsible water pouch: 5.7 inches*10.7 inchesGravity water bag: 8.8 inches*16.7 inches Filtration capacity 100,000 gallons Filter media...