Message: Hello, I currently have a 2002 Marquis Costal Series Spa. I am interested in retrofitting the unit. I Have two pumps operating at 230 V with 120 V Ozonetor.  I am interested in your Balboa kits. Can you suggest the best unit for my application. Thank you   Leo

Dated on : 07-20-2012

Replies :

The Balboa VS520 is the heater you will need.  This includes the topside controller and all the cables, as well as complete retrofit instructions and free support.   Dan  

Post By : Dan Jung Dated On : 07-20-2012

Depends on the specifics of the pumps. If one is a circulation pump and the other is a larger jet pump then the VS501Z is good. If one is a 2-speed pump and the other a 1-speed pump you can still use the VS501Z. If both are 2-speed pumps you need a VS520SZ. If you are looking for a spa pack with the most features that can handle all these situations, go with the EL2000. 
Post By : Dan Jung Dated On : 07-20-2012