Carbon Pre-Filter Fits Harmony Model HAP1625, HAP615, HAP625, HAP616B-TU, HAP633-U, HAP650, HAP675, HAP675RC, HAP725, HAP726, HAP726-U, HAP750, HAP756, HAP759, HAP8615, HAP8650, HAP8756, HAP9413, HAP9726, GE 106633, 106643, 106653, Walmart, 106633, 106643, 106653, A1230H, 9000492, 106743, 106773, Also fits Walmart 106653,106643,106653, A1230H,9000492,106743,106773, HAPF600PDQ, HAPF600CS, (HAPF-600PDQ) A1260C 4 per pack