GE FQSLF Dual Stage Twist and Lock Under Counter Water Filtration System Replacement Filters (Lead/Cyst) This is an O.E.M. Authorized part Fits with various GE brand models Oem part # FQSLF Filter Life: 6 months or 1200 gallons (whichever comes first) Works with the following models: General Electric GQSL55F, General Electric GXSL55F Micron Rating: 0.5 - 1 microns Filter Type: Carbon Block Actual Size: 8-1/2-Inches (length) x 2-Inches (diameter)