This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases 9075120 Features: -Available for whirlpools.-UL Approved. Specifications: -120 Voltz.-15 Amps. Product Features Whirlpool accessory Maintain constant water temperature Allows for longer, more relaxing soak Compatible only with American Standard Whirlpool tubs Quick and easy two-step installation Fill the tub with water