| ARP20-F01 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20-F01E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20-F01H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20-F02 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20-F02E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20-F02H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F01 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F01E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F01H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F02 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F02E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP20K-F02H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F02 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F02 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F02E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F02H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F03 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F03E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30-F03H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30K-F02 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30K-F02H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30K-F03 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP30K-F03H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F03 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F03E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F03H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F04 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F04E | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40-F04H | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40K-F03 | ARP20/30/40, Direct Operated Precision Regulator |
| ARP40K-F04 | ARP20/30/40, Direct Operated Precision Regulator |