No SPARE PARTS for products

I bought Bennett Read Water Filtration Vacuum Cleaner in 2019, the vacuum worked wonderful and I loved the product. Only problem NOW is that the spare parts (filter) for this vacuum are obsolete. I went to TEVO and was told that the part is no longer been manufactured. I mean really??? If this is the case, I will never buy a Bennett Read product again because there’s no value for money in a long run. Does it mean that I need to buy a new vacuum meanwhile the one I have is still working and in a good condition? This is ridiculous -really NOT FAIR!!!