3KW / 1600W Precision Thermostat Electric Water Heater for Swimming Pool, Bathtub, SPA & Hot Tub Massage _1

Compact electric heater designed for fitting into the circulation massage pipe at the bottom of a bathtub. Operation is straightforward thanks to a mechanical temperature switch that lets you set the desired water temperature. Safety features include a water-flow switch and an ultra-high temperature protection switch to ensure reliable performance during movement. All control elements are mechanical and economical. The heating assembly uses a 316# stainless steel electric heating tube, offering good resistance to corrosion (including chlorine). The inner tank promotes strong circulation, resists slag buildup, and is simple to disassemble for cleaning or maintenance.