| Catalogue code | Diameter [mm] |
| DGW2012 | 20 x 1/2″ |
| DGW2034 | 20 x 3/4″ |
| DGW2534 | 25 x 3/4″ |
| DGW321 | 32 x 1″ |
| DGW40114 | 40 x 1 1/4″ |
| DGW50112 | 50 x 1 1/2″ |
| DGW632 | 63 x 2″ |
| DGW75212 | 75 x 2 1/2″ |
| DGW903 | 90 x 3″ |
| DGW1104 | 110 x 4″ |
| DGW1254 | 125 x 4″ |
| Catalogue code | Diameter [mm] |
| DGW2012 | 20 x 1/2″ |
| DGW2034 | 20 x 3/4″ |
| DGW2534 | 25 x 3/4″ |
| DGW321 | 32 x 1″ |
| DGW40114 | 40 x 1 1/4″ |
| DGW50112 | 50 x 1 1/2″ |
| DGW632 | 63 x 2″ |
| DGW75212 | 75 x 2 1/2″ |
| DGW903 | 90 x 3″ |
| DGW1104 | 110 x 4″ |
| DGW1254 | 125 x 4″ |