Therm 4.0kW [15" x 2"] Flo-Thru Incoloy Heater [Hercules] (26-0315-5S-K) pleatco Replacement is often needed when

Replacement is often needed when the original bumper becomes worn down

it is intended for Zodiac

Useful for pump rebuilds and targeted equipment repairs

Replacement part number 39-420

but final fit should always be checked against the original part

Therm 4.0kW [15" x 2"] Flo-Thru Incoloy Heater [Hercules] (26-0315-5S-K) pleatco Replacement is often needed whenBuilt for service situations that demand the correct heater geometry and output, Therm [Hercules] 15" 4. 0kW Flo Thru Incoloy Heater (26 0315 5S K) is engineered for Hercules and helps return the spa to stable, predictable heating performance. Its 4. 0kW heating output and 15" heater length should be matched to the original equipment requirements before installation, since spa heaters are not universally interchangeable. For technicians and spa