Filter lasts 12 Months. Open Box (New & Sealed Filter). HAP412 / HAP422 / HAP424 / HAP702 / HAP706 / HAP716 / HAP1702 / HAP2400 / HAP9240 / HAP9241 / HAP9242 / HAP9243 / HAP9412 / HAP9413 / HAP9414 / HAP9415 / HAP9422 / HAP9423 / HAP9424 / HAP9425.
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