The GMP Tools Cable Blowing Coupling (Female), Vendor Part #37473 / Millennium Part #494307, connects duct sections during air-assisted fiber optic cable blowing operations, letting crews extend hose runs without breaking suction or damaging fiber optic cable jackets. Its female-end fitting mates securely with matching GMP couplings to maintain a sealed, leak-free pathway through conduit runs on OSP fiber builds. Built to GMP Tools' quality standards, this coupling supports safe, efficient cable placement in duct and innerduct systems. Millennium carries this coupling in stock for contractors installing fiber optic cable across broadband and telecom networks.