PEL Refrigerator PRGD 2550 Curved Glass DoorDiscription. The PEL PRCGD 2550 is a. top mount refrigerator with a curved glass door and a capacity of around 260 liters. It is a double door, direct cool model that uses a manual defrost system. A similar inverter model, the PEL PRINVOGD 2550 Curved Glass Door InverterOn Refrigerator, is also available IN Bismillah Electronics. Specifcation. Model Variants PRGD 2550: Standard modelPRINVOGD 2550: Inverter model Total Capacity Around 260 liters