Coates 12411ST Electric Element Spa Heater - 11 kW, 230V is intended for use on spas and hot tubs with a forced water circulation system. The water flow through the heater should be at least 15 GPM but should not exceed 70 GPM. Higher flow may damage the heater.

The Coates Spa Heater is suitable for indoor or outdoor installations. The heater should be secured to a smooth, flat surface. The Heater has a temperature controller adjustable from 65 F to 104 F. The Coates Spa Heater's stainless steel tank is designed to optimize heat transfer by efficiently directing the water flow over the electric heating element. The Coates Spa Heater has 1-1/2" and 2" union connections

Dimensions:17-3/4" L x 4-1/4" W x 14" H