The high efficiency heating coil in a Hubbell SLN model is constructed from high grade copper finned tube coil. It is designed for maximum longevity and spiral wound for maximum heat transfer.

• 65 and 80 gallon heaters available with one (1) 20 Sq./Ft. heating coil.
• 120 gallon heaters available with one (1) or two (2) 20 Sq./Ft. heating coils.