Sorry this vacuum cleaner filter is no longer made by Nutone. I would recommend taking a look at some new Nutone central vacuum systems as the motors are much stronger since the cv-353 was produced and have much greater filtration! In fact the VX Nutone series are the quietest central vacuum systems produced today!
If you have any questions feel free to contact me or call us at 888-468-2210.
Thanks, Justin GoVacuum