Horizon #34-123-1102 Manf. Air Supply of the Future Manf. # 3910101 Ultra 9000 Highly advanced and super quiet for portable spas. Intake manifold designed to eliminate small objects and debris from entering blower and causing failure. A 2" tapered slip fitting eliminates the need for glue or clamps. Standard with 4-pin amp 48" cord. Other cord options available Thermally protected motor