| 호환모델 | 높이 [inch (mm)] | 유닛 개수 | 모델  | 
| REKJ PVCEJ | 1.73 (44) | 2-unit | 
R4K-36 R4K-80 RK-80 EGS CD (models of 36 W or less)  | 5.22 (132.5)  | 10-unit  | RMO-133H-RK | 
| RMO-133H-RK2 | 
| RMO-133H-RK3 | 
RK PZJR EQ TB CO | RK(400 W): 6-unit, RK (800 W): 3-unit, RK(1200 W): 2-unit | RMO-133H-RK400 | 
DRJ DRS DJOP CO | 3-unit (DRS1000:2-unit) | RMO-133H-DRJ | 
EGD EPR CO CD (models of 48 W or more) | 5-unit: [3.31 inches (84 mm)] wide, 2-unit: [8.27 inches (210 mm)] wide | RMO133H-EPR | 
| R4G R4GT R4GE | 6.97 (177) | 5-unit: [3.31 inches (84 mm)] wide, 4-unit: [4.13 inches (105 mm)] wide, 2-unit: [8.27 inches (210 mm)] wide | RMO-177H-R4G | 
| CO | 5.22 (132.5) | 11-unit | RMO-133H-CO | 
| ES | 5.87 (149)  | 6-unit: [2.76 inches(70 mm)] wide 4-unit: [4.13 inches(105 mm)] wide | RMO-150H-B | 
| EJC | 2-unit | RMO-150H-EJC |