Laing – E10 Circulation Pump, 115V, 3/4 Barbed – 73989. Jacuzzi®/Sundance® Part Number: 6500-460. The item “Laing E10 Circulation Pump, 115V, 3/4 Barbed 73989″ is in sale since Tuesday, January 24, 2017. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs”. The seller is “poolspasuppliesonline” and is located in Houston, Texas. This item can be shipped worldwide.