The Aprilaire 4315 is a compatible part for the following electric air cleaner models made before May 2005:
The Aprilaire 4315 Ionizing Wire for Air Cleaners is a replacement ionizing wire for the Aprilaire 5000 electric air cleaner. Note that this ionizing wire is only designed for model 5000 units made prior to May 2005. The length of this Aprilaire ionizing wire measures 24 15/16" center to center of the eyelet hole, which is 1/8" in diameter. This is a genuine Aprilaire product manufactured with quality tungsten wire and stainless steel eyelet holes. You can have your Aprilaire Air Cleaner running smoothly with this ionizing wire.
Aprilaire 4315 Ionizing Wire for Air Cleaners specifications: