moskila balboa 5.5 kw heater tube assembly + sensors pn 58083 moskila balboa p/n 58083 replacement heater assembly with sensors and 5.5 kw 240v heater element. pn 58083 is the most common heater tube assembly used in balboa's vs and el, and bp line of spa packs. this unit comes complete with sensors. heater element is 800 incoloy and the stainless steel outer tube is 2" diameter x 15" long. heater element produces 5.5 kw at 240 v and 1.5 kw at 120v. 2" slip tail pieces, gaskets and split ring nuts are supplied.comes with 1 year warranty. if you have a salt water pool then you should look for the titanium upgrade which we also have in stock. free life time technical support provide with this product.