Have added them to my business contacts.
I've only been using them for a couple of weeks but the fit is good and they are as good as OEM.
8 Inch main wheel. Fits Clarke CA30 17E, CA30 20B and Viper AS430C, AS510B
Fits Nilfisk Advance VF90305 (alt # vf90305)This part is listed as fitting the following models: