Waterpik XAS-613E PowerPulse+ 6 Settings Wallmount Showerhead, 1.8 GPMHighlights: Flow Rate : 1. 8 GPM Number of Spray Settings : 6 settings Assembled Height : 3. 5 in. Assembled Length : 3. 5 in. Showerhead Face Diameter : 3 1 2 in. Connection Size : 1 2 in. Chrome finish Independent clinical testing shows that PowerPulse Massage helps to soothe muscle tension, increase flexibility, and promote restful sleep 94% of participants in an independent clinical study reported relief of muscle tension and stiffness within just