Ultra 9000Highly 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 Please Note: Maximum blower size for 1-1/2" pvc pipe is 1 Hp except for the Millennium blower