PRODUCT DESCRIPTION Hayward SP0710X62 Pro-Series Vari-Flo Replacement 1-1/2-Inch Control Valve Assembly with Gauge FROM THE MANUFACTURER Hayward SP0710X62 Pro-Series Replacements Part 1-1/2-Inch Vari-Flo Control Valve Assembly with Gauge . Incorporating the many advanced features of Hayward's Pro Series side-mount sand filter, the Pro Series Plus satisfies the requirements of the most demanding installations, including pools installed with in-floor cleaning systems, spas, fountains or solar heating systems. Its spherical tank design evenly distributes the high pressure and stress associated with these applications, resulting in greater strength and longer life. Applications: In-ground pools installed with in-floor cleaning systems, solar heating systems, water features, In-ground spas or in-ground pool/spa combinations