Overview Reviews Similar Products Product Description Dynasty Spas Heater, 3in Titanium, Flo-Thru, 4.0kw - 11530 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Low flo vertical 4.0kW Titanium universal heater $379.99 Add to Cart Quick view Heater Assembly, Flo-Thru, Balboa, 4.0KW, With Tube and Element $169.95 Add to Cart Quick view 5.5KW or 4.0kW Flo-Thru Heater Element, Balboa M7 Technology 6FLO $49.95 Choose Options