D&D PowerDrive A28 or 4L300 1/2 x 30in V-belt Vbelt A28/4L300 The belts exceed USA RMA published ratings levels. They are designed to perform at the identical or higher level than all other major USA Manufacturer’s belts of the same type. Belt A/4L 1/2 x 30in OC If you are needing a quantity more then what is available please contact us through the eBay messaging.