13.5" (2) 15" (33) 15.75" (1) 16" (2) 16.25" (3) 17.5" (2) 17.75" (4) 19.25" (2) 9" (2)

4.0kW (18) 4.5kW (3) 5.5kW (32) 7.2kW (2)

Used on Advanced Spas, LA Spas (1) Used on Arctic Spas, Dual Titanium Elements (1) Used on Arctic Spas, Titanium Element (8) Used on Cal Spas (3) Used on Cal Spas, Titanium Element, Insulated Wrap (2) Used on Caldera Spas (1) Used on Dimension One, Hercules Spa (2) Used on DM/Vita Spas (3) Used on Hercules Spas (2) Used on Leisure Bay Spas (2) Used on NuWave Spas (3) Used on Onyx Spas, Titanium Element (1) Used on Saratoga Spas (1) Used on Spa Builders Systems (2) Used on Spa Builders Systems, Titanium Element (1) Used on Sundance Spas (5) Used on Sundance/Jacuzzi Spas, Titanium Element (1) Used on Thermo Spas (2) Used on United Spas Systems (2) Used on Vita Spas, DM Industries (2) Used with ACC, Brett Aqualine (2)