Includes a 1/2 in NPT restrictive valve assembly and six flow restrictors with different colors corresponding to flow rates. Flow rates available - 1.2 GPM - 1.5 GPM - 1.8 GPM - 2.0 GPM - 2.2 GPM - 2.5 GPM - Choose the appropriate restrictor to match shower pressure or faucet needs Key benefits - Reduces water waste while maintaining comfortable shower and faucet performance - Simple, interchangeable flow options to tailor output to your home - Suitable for both bathroom showers and kitchen taps - Durable and reliable performance across a wide temperature range Specifications - Threading: 1/2 inch NPT - Flow restriction options: six presets as listed above - Operating temperature: 0 to 90 degrees Celsius - Material: POM based construction for durability and reliability - Dimensional size: 14 x 16 x 6 mm - Color coding: colors correspond to different flow specifications for easy identification What you get - A set of A1/2 NPT restrictive valves - Six color-coded flow restrictors with distinct GPM ratings Compatibility and use - Compatible with standard 1/2 in NPT fixtures - Suitable for shower heads and kitchen taps - Can be used to optimize water flow in areas with low water pressure Usage scenarios - Home shower optimization: install a restrictor that matches your preferred GPM to balance spray feel with water savings - Kitchen faucet control: deploy a lower GPM restrictor to reduce water waste during dishwashing or rinsing - Low-pressure or variable-pressure settings: swap to a higher or lower GPM restrictor to maintain consistent performance without wasting water Installation and maintenance - Easy to swap restrictors by removing the existing inline piece and installing the chosen GPM restrictor - Keep threads clean and dry during installation - Periodically verify the restrictor seating to prevent leaks and ensure consistent flow Notes - The set provides multiple colors and flow specifications to allow precise control over water output - Appropriate for daily use in typical residential settings and significantly improves water efficiency without sacrificing reliability