PerfectPure Water Filter, Compatible with LG 5231JA2006A, LT600P, 5231JA2006B models - NSF 42 Certified - Made in the USA - 1 pack NSF 42: System Tested and Certified by IAPMO against NSF/ANSI Standard 42 for the reduction of Chlorine Taste and Odor. 6 MONTH/400 GALLON filter removes chlorine, odor, contaminants and particulate PERFECTPURE branded replacement filter fits LG and Kenmore refrigerators REPLACES PART NUMBERS: LG 5231ja2006a, LG 5231ja2006b, LG LT600p, 9990 & others (See complete list below) MADE IN THE USA  Satisfaction Guaranteed