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.
Filter. Fits Viper Fang 20HD, Fang 24T/26T/28T, Fang 24T/26T/28T, Fang 32T
Fits Nilfisk Advance VF82168A (alt # vf82168a)This part is listed as fitting the following models: