Your search for "gb-442" revealed the following:
Slot cover green belt (Polar 242591) GB-442
Regular price $282.00Our Part Number: GB-442 Slot covering belt or tape for some of the models of the Polar 155 EMC 2,...
List of Polar Paper Cutter Table Slot Cover Belts
Polar Cutter Model Serial Number Range Part # 76 EM Fits All serial numbers GB-425 78 X, 78 XS,...