It Is Highly Useful A refrigerator door gaskets eventually start to break down and deteriorate, this leads to gaps, cool air begins to escape. This increased consumption of energy and utility bills. So, if your refrigerator is not working to the desired efficiency, follow the instruction. Works with All Frigidaier Models Listed: Kenmero models beginning with: 25321021, 25321041, 25321082, 25321111, 25323024, 25323082, 25323114, 25324042, 25324082, 25324092, 25326042, 25326052, 25326062, 25326072, 25326082, 25326092, 25327042, 25328042, 25328052, 25328062, 25328092, 25329082, 25329111, 25392802, 25392804, 25392808, 25392811 Frigidaier model beginning with:AFFU2, F82U2, FFU20, FFU21, FKFH2, GLFH2, GLFU2, LFFH2, LFFU2, TFFU2, UL500 Crosley models beginning with:CFUFH2, CFUM21, UL2100, UL2500, UL5000 Gibson models beginning with:GFU20, GFU21 Other multi models beginning with: CFU21, MFU20, MFU21