The supremely built Volume Control Valve Rough provides the essential functionality to many Axor trims. This rough works with such trims as the Axor Starck Volume Control Trim. Hansgrohe's products offer a lifetime of satisfaction featuring the ultimate in quality, design and performance. 90° Ceramic cartridge Flow Rate: 10.5 GPM at 44 PSI Includes wall seal 3/4" NPT connection cUPC listed Recommended water pressure: 15-75 PSI Maximum water pressure: 145 PSI Recommended hot water temperature: 120-140°F Maximum hot water temperature: 176°F