Response to The 58-355-5112 is actually an older discontinued model. The new part # is mfg # ES8848-E ( 58-355-2559 ) This system has gone thru many changes & no longer uses a pressure switch but now includes a dual sensor safety circuit, with Balboa controls that include a TP600 topside control. The pump model has changed to a Waterway Executive series. While it is considered a complete unit, there are specific installation requirements & depending on what state you live in it may require a licensed electrician to handle the electrical run & hookup. There is low-level programming that is done thru the pc board dip switches & the topside control. We really have to recommend you have a professional spa tech handle the installation. There are also other accessory options available, see snip images provided. These are never a stock item due to mfg warranty & are built on an as sold bases. There is a 2 - 3 week lead time.

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