| DIN3015-S-A-2-R-28-PP-W1 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV |
| DIN3015-SA2R-28PP-W1 | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV |
| HR2S-28.1/1 | C1861 | HYDAC SYSTEMS & SERVICES GMBH |
| HRS2S28PP | C1861 | HYDAC SYSTEMS & SERVICES GMBH |
| HRS2S28PP STMBL | C1861 | HYDAC SYSTEMS & SERVICES GMBH |
| RCP1-228 | C2898 | FKB GMBH |
| RCPR1-228 | C2898 | FKB GMBH |
| SPAL4028PP-DPAL-AS | D2766 | STAUFFENBERG, WALTER GMBH & CO. KG |
| RCPR1-228 | D8134 | PARKER HANNIFIN GMBH-GESCHAEFTSBEREICH ERMETO- |
| RCP1-228 | D8134 | PARKER HANNIFIN GMBH-GESCHAEFTSBEREICH ERMETO- |
| VG95934A2-28-PP-W1 | D9477 | BUNDESAMT FUER AUSRUESTUNG, |
| SPAL4028PP-DPAL-AS | F7247 | STAUFF |