This is a new Vita Spa heater flow thru used by DM industries sometime between 2008 and 2009 on all Vita models with ICS systems. The ICS Pack can either bring this heater with the plate to place the heater sensor underneath, or the one that uses a thermowell to insert the sensor. The overall length is 18.5 including the white Union tail piece. Thank you for reviewing this item! The item "VITA SPA HEATER FLOW THRU 220VOLT 3KW ICS SYSTEM" is in sale since Friday, July 22, 2016.This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs". The seller is "expertinvitaspa" and is located in Miami, Florida. This item can be shipped worldwide.