Connects to a standard male garden hose fitting. Provides quick confirmation of available water pressure and flow rate. Use to determine equipment needed for existing setup or a new facility. Can also be mounted in-line with installed equipment to determine operational water pressure. Troubleshoot existing setup; see if and when the water pressure fluctuates. Useful for selecting metering tips based on the available pressure. Includes three flow restrictors for testing to see if enough water volume and pressure are available.