| Genuine Aprilaire 4311 Control Electrode |
 The Aprilaire Control Replacement Electrode 4311 is for the model 5000 electronic Air Purifier. Looks like an aluminum pre-filter and sits just before the pleated media. Related Products: Aprilaire 5000 Air Purifier Aprilaire 4347 Plastic Door for model 2400 Price: 56.99 |