The Fremco Adaptor Plate Kit, 3.3 mm (Millennium part #633318, vendor #103-190923050) is built for precision cable blowing applications involving small-diameter microduct and fiber optic cable, commonly found in dense urban and multi-dwelling-unit deployments. This adaptor kit locks into Fremco cable placing equipment to maintain the tight seal required for consistent air pressure and reliable cable feed at 3.3 mm. Its compact, durable design withstands repeated installation and removal without losing fit or performance. For contractors working on fine-fiber microduct networks, this kit offers a dependable way to keep blowing operations efficient and equipment properly configured.