The Fremco Adaptor Plates, 10 x 18 mm (Millennium part #543972, vendor #103-230421002) let cable blowing crews reconfigure their equipment to accommodate 10 mm cable in 18 mm duct without swapping out the entire blower head. Precision-manufactured to Fremco's tight tolerances, these adaptor plates maintain a consistent air seal that protects blowing distance and fiber optic cable integrity during placement. They're built for quick installation and repeated field use across varying duct and cable size combinations common on FTTH and FTTP builds. Stocking this adaptor plate size gives installation teams the flexibility to handle mixed-diameter jobs without added downtime.