Filter Everything's AF4365 replacement A-Coil filters are compatible with Nordyne model C8DAM01830U-B and many Nordyne / Intertherm models. Other compatible models include 921784, 921788, F-1030-33, F-1030-32, SA274-15x17x1/8. For A/C and Heat Pump A-Coils. Dimensions of these filters measure 15" x 17" x 1/8". Sold as a 2-Pack. Filters should be cleaned every 30 days for best performance- our filters are long-lasting and washable. Proudly made in the USA by Filter Everything.