Hi @MrLevesque,
Welcome to the Dyson Community!
We’re sorry to hear you’ve had difficulty ordering a replacement post filter for your CY23 cylinder vacuum. We support our machines with spare parts and servicing for their warranty period and beyond. Despite global supply constraints, please be assured we’re doing everything we can to add new stock of spare parts and accessories as soon as we’re able to.
The post filter in the CY23 vacuum is engineered to last the lifetime of the machine in normal domestic use, and ordinarily we wouldn’t expect it to need replacing. If you’re experiencing performance issues, it's worth thoroughly checking the floor tool, wand, wand handle, hose and inner duct for any blockages or other issues.
In the meantime, all we can suggest is ensuring you’re registered via our Notify me function so we can alert you via email when more stock is added.
If you haven’t already, you’re also welcome to reach out to your regional Dyson Customer Care team to discuss troubleshooting and repair options by visiting Dyson.com and clicking Support.
It appears through message boards that this part has not been available for over 1 year through Dyson USA. Custo.er service was not helpful and obviously using the "notify me" when in stock has not been useful since about 2 months ago when I first did it.
Safe to say since there isn't a Dyson service center within hundreds of miles of me here in Albuquerque, NM, there is no support That way either.
This will be the last Dyson product for me considering what money I have in it and it's useless for a filter which should be readily available.