| RCK-50M | 1/2"Rigid Couplings, Malleable Iron, 10/100-PK | 1/2" | 10 | 100 |
| RCK-75M | 3/4"Rigid Couplings, Malleable Iron, 10/100-PK | 3/4" | 10 | 100 |
| RCK-100M | 1"Rigid Couplings, Malleable Iron, 5/50-PK | 1" | 5 | 50 |
| RCK-125M | 1-1/4"Rigid Couplings, Malleable Iron, 5/50-PK | 1 1/4" | 5 | 50 |
| RCK-150M | 1-1/2"Rigid Couplings, Malleable Iron, 12-PK | 1 1/2" | N/A | 12 |
| RCK-200M | 2"Rigid Couplings, Malleable Iron, 5-PK | 2" | N/A | 5 |
| RCK-250M | 2-1/2"Rigid Couplings, Malleable Iron, 5-PK | 2 1/2" | N/A | 5 |
| RCK-300M | 3"Rigid Couplings, Malleable Iron, 3-PK | 3" | N/A | 3 |
| RCK-350M | 3-1/2"Rigid Couplings, Malleable Iron, 2-PK | 3 1/2" | N/A | 2 |
| RCK-400M | 4"Rigid Couplings, Malleable Iron, 2-PK | 4" | N/A | 2 |
| RCK-500M | 5"Rigid Couplings, Malleable Iron, 1-PK | 5" | N/A | 1 |
| RCK-600M | 6"Rigid Couplings, Malleable Iron, 1-PK | 6" | N/A | 1 |
