The HydroQuip Therm Products Hot Spring Heater - 4 KW is a genuine replacement heater designed for Hot Spring and Tiger River Spas from 1995 onwards. Featuring titanium heating elements and a low flow design, this heater enhances efficiency and performance. It includes essential components like sensors, tubing, and clamps, ensuring a hassle-free installation without the need for modifications. The 240-volt heater is compatible with a range of systems, offering a seamless replacement for discontinued models. Trust in the durability and reliability of this US-made UL-listed heater to maintain your spa's optimal functionality.