Polaris 1-521-03 Bottom Mount Metal Spa Blower, Accessory Parts 1 HP, 240V allows you to enjoy the soothing effects of powerful, invigorating bubbles in your spa without excess equipment noise. In fact, independent laboratory tests prove it's quieter than competitive blowers, which will make you " and your neighbors " very happy. Offering a full line of metal residential blowers.Their rugged all-steel construction has been an industry standard for years.Polaris metal blowers offer rugged engineering to guarantee cooler operation and durability.