Water Saving Shower Heads Market by Shower Head Type (Dual / Combo (Fixed + Handheld), Filtered Shower Head, Fixed / Wall-Mounted), Flow Rate (1.5 To 2.0 GPM, Above 2.0 GPM, Up To 1.5 GPM), Water Saving Mechanism, Features, Distribution Channel, Price Tier, Certification And Compliance, Material And Finish, Target Customer Segment, Pressure Suitability, End User, Sales Model - Global Forecast 2026-2032