Circulation Pump - Jacuzzi 1.5" Plumbing - J/LX, J-400 and J-300

This is the new FlowMaster pump introduced to market in 2005 for their J-400 series spas. It is designed to run with hefty 1.5" plumbing, which allows it to efficiently pump more water per megawatt hour than their previous 1/2" plumbing pumps. 

This pump fits all J-400 series spas since the series introduction in 2005 until 5/4/2011, when it moved over to the J-LX series of spas (which are still currently using them) Technically, the replacement pump is nearly identical to the original, so you can still use this pump on newer J-400 series spas.

In 2012, Jacuzzi made major changes to their J-300 series spas, and one of them is the switch to this pump. If you have a circulation pump that has 1.5" plumbing, this is the pump you need.