Compact design with all the features of large heaters304 stainless steel tank and threaded headSafety sensor electric heating elementEasy access to internal controlsIndicator light shows when heater is onFits under spa skirts and stepsEasy to installColor: grayWeight: 14 poundsManufacturer warranty: 1-year warrantyHayward spa heater will help create a steamy place to relax at the end of the day