MaxxAir OEM Roof Vent Printed Circuit Control Board 10C21275K IN-STOCK Version: OEM (MaxxAir) Replaces part numbers: 10-21276K 10A21276K 10B21276K Applicable To Models: 4000K Plus Manual Lift Maxxfan 4050K Plus Manual Lift Maxxfan 4051K Plus Manual Lift Maxxfan 5100K Deluxe Manual Lift Maxxfan 6200K Deluxe Manual Lift Maxxfan Updated On: 12/27/25










