Air Supply Silencer Blower 6320120F, 2HP - 120V has taken a quantum leap in quiet performance.
Installation Instructions:

Ensure the outside air blower is compatible with your spa equipment and is properly sized.
Choose the right location by installing the blower vertically at least one foot above the water line in a well-ventilated area.
Connect the electrical wiring - turn off the power to your spa control system, connect the blower wires by following the manufacturer's instructions.
Attach the outdoor air blower by connecting the PVC pipes, sealing the connections to prevent leaks.
Please reference additional installation instructions in owner's manual in Guides and Documentation section below.
Please Note: We recommend professional installation or the manufacturer warranty may be void. See Warranty section below.

Air Supply - Silencer Blower 6320120F, 2HP - 120V